7155855928 has 16 divisors (see below), whose sum is σ = 14449324680. Its totient is φ = 3302702688.

The previous prime is 7155855901. The next prime is 7155855929. The reversal of 7155855928 is 8295585517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7155855929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34403050 + ... + 34403257.

Almost surely, 2^7155855928 is an apocalyptic number.

It is an amenable number.

7155855928 is an abundant number, since it is smaller than the sum of its proper divisors (7293468752).

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

7155855928 is a wasteful number, since it uses less digits than its factorization.

7155855928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68806326 (or 68806322 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 55.

The square root of 7155855928 is about 84592.2923675674. The cubic root of 7155855928 is about 1927.0243215347.

The spelling of 7155855928 in words is "seven billion, one hundred fifty-five million, eight hundred fifty-five thousand, nine hundred twenty-eight".