977903419478 has 32 divisors (see below), whose sum is σ = 1497572640288. Its totient is φ = 478788710400.

The previous prime is 977903419477. The next prime is 977903419483. The reversal of 977903419478 is 874914309779.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977903419477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27118076 + ... + 27154112.

It is an arithmetic number, because the mean of its divisors is an integer number (46799145009).

Almost surely, 2^977903419478 is an apocalyptic number.

977903419478 is a deficient number, since it is larger than the sum of its proper divisors (519669220810).

977903419478 is a wasteful number, since it uses less digits than its factorization.

977903419478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37088.

The product of its (nonzero) digits is 96018048, while the sum is 68.

The spelling of 977903419478 in words is "nine hundred seventy-seven billion, nine hundred three million, four hundred nineteen thousand, four hundred seventy-eight".