7885405080 has 640 divisors, whose sum is σ = 33035904000. Its totient is φ = 1646023680.

The previous prime is 7885405079. The next prime is 7885405081. The reversal of 7885405080 is 805045887.

It is an interprime number because it is at equal distance from previous prime (7885405079) and next prime (7885405081).

It is a super-2 number, since 2×7885405080² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7885405081) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 12496365 + ... + 12496995.

It is an arithmetic number, because the mean of its divisors is an integer number (51618600).

Almost surely, 2^7885405080 is an apocalyptic number.

7885405080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7885405080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16517952000).

7885405080 is an abundant number, since it is smaller than the sum of its proper divisors (25150498920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7885405080 is a wasteful number, since it uses less digits than its factorization.

7885405080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 7885405080 is about 88799.8033781607. The cubic root of 7885405080 is about 1990.4044597624.

The spelling of 7885405080 in words is "seven billion, eight hundred eighty-five million, four hundred five thousand, eighty".