7942511880 has 192 divisors, whose sum is σ = 26844480000. Its totient is φ = 2034160128.

The previous prime is 7942511849. The next prime is 7942511933. The reversal of 7942511880 is 881152497.

It is a super-2 number, since 2×7942511880² (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 an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2075649 + ... + 2079471.

It is an arithmetic number, because the mean of its divisors is an integer number (139815000).

Almost surely, 2^7942511880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7942511880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13422240000).

7942511880 is an abundant number, since it is smaller than the sum of its proper divisors (18901968120).

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

7942511880 is a wasteful number, since it uses less digits than its factorization.

7942511880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068 (or 4061 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 7942511880 is about 89120.7713162313. The cubic root of 7942511880 is about 1995.1978020092.

The spelling of 7942511880 in words is "seven billion, nine hundred forty-two million, five hundred eleven thousand, eight hundred eighty".