977854640132 has 24 divisors (see below), whose sum is σ = 1734469846200. Its totient is φ = 482317203456.

The previous prime is 977854640117. The next prime is 977854640149. The reversal of 977854640132 is 231046458779.

It can be written as a sum of positive squares in 4 ways, for example, as 105902081476 + 871952558656 = 325426^2 + 933784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3017657 + ... + 3325952.

It is an arithmetic number, because the mean of its divisors is an integer number (72269576925).

It is a 1-persistent number, because it is pandigital, but 2⋅977854640132 = 1955709280264 is not.

Almost surely, 2^977854640132 is an apocalyptic number.

It is an amenable number.

977854640132 is a deficient number, since it is larger than the sum of its proper divisors (756615206068).

977854640132 is a wasteful number, since it uses less digits than its factorization.

977854640132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344135 (or 6344133 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 977854640132 in words is "nine hundred seventy-seven billion, eight hundred fifty-four million, six hundred forty thousand, one hundred thirty-two".