977255124722 has 18 divisors (see below), whose sum is σ = 1514761774029. Its totient is φ = 472844412360.

The previous prime is 977255124721. The next prime is 977255124739. The reversal of 977255124722 is 227421552779.

It can be written as a sum of positive squares in 2 ways, for example, as 579244288561 + 398010836161 = 761081^2 + 630881^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=699019.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (977255124721) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 43327904 + ... + 43350452.

Almost surely, 2^977255124722 is an apocalyptic number.

977255124722 is a deficient number, since it is larger than the sum of its proper divisors (537506649307).

977255124722 is an frugal number, since it uses more digits than its factorization.

977255124722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45162 (or 22582 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 53.

The spelling of 977255124722 in words is "nine hundred seventy-seven billion, two hundred fifty-five million, one hundred twenty-four thousand, seven hundred twenty-two".