7456978880 has 56 divisors (see below), whose sum is σ = 19122859392. Its totient is φ = 2753344512.

The previous prime is 7456978871. The next prime is 7456978883. The reversal of 7456978880 is 888796547.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7456978883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892112 + ... + 900431.

It is an arithmetic number, because the mean of its divisors is an integer number (341479632).

Almost surely, 2^7456978880 is an apocalyptic number.

It is an amenable number.

7456978880 is an abundant number, since it is smaller than the sum of its proper divisors (11665880512).

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

7456978880 is a wasteful number, since it uses less digits than its factorization.

7456978880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1792573 (or 1792563 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 62.

The square root of 7456978880 is about 86353.8006112065. The cubic root of 7456978880 is about 1953.6839305405.

The spelling of 7456978880 in words is "seven billion, four hundred fifty-six million, nine hundred seventy-eight thousand, eight hundred eighty".