78955498902 has 64 divisors (see below), whose sum is σ = 181455206400. Its totient is φ = 22435747200.

The previous prime is 78955498889. The next prime is 78955498903. The reversal of 78955498902 is 20989455987.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78955498903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9989152 + ... + 9997052.

It is an arithmetic number, because the mean of its divisors is an integer number (2835237600).

Almost surely, 2^78955498902 is an apocalyptic number.

78955498902 is an abundant number, since it is smaller than the sum of its proper divisors (102499707498).

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

78955498902 is a wasteful number, since it uses less digits than its factorization.

78955498902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9181.

The product of its (nonzero) digits is 65318400, while the sum is 66.

The spelling of 78955498902 in words is "seventy-eight billion, nine hundred fifty-five million, four hundred ninety-eight thousand, nine hundred two".