7888413078 has 144 divisors (see below), whose sum is σ = 22103093376. Its totient is φ = 2013258240.

The previous prime is 7888413077. The next prime is 7888413089. The reversal of 7888413078 is 8703148887.

It is a super-2 number, since 2×7888413078² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7888413077) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 344350 + ... + 366542.

It is an arithmetic number, because the mean of its divisors is an integer number (153493704).

Almost surely, 2^7888413078 is an apocalyptic number.

7888413078 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 7888413078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11051546688).

7888413078 is an abundant number, since it is smaller than the sum of its proper divisors (14214680298).

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

7888413078 is a wasteful number, since it uses less digits than its factorization.

7888413078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22259 (or 22249 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 54.

The square root of 7888413078 is about 88816.7387264360. The cubic root of 7888413078 is about 1990.6575167896.

The spelling of 7888413078 in words is "seven billion, eight hundred eighty-eight million, four hundred thirteen thousand, seventy-eight".