977207351137 has 4 divisors (see below), whose sum is σ = 1034690136516. Its totient is φ = 919724565760.

The previous prime is 977207351123. The next prime is 977207351147. The reversal of 977207351137 is 731153702779.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 516269553361 + 460937797776 = 718519^2 + 678924^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-977207351137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (977207351147) 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 3 ways as a sum of consecutive naturals, for example, 28741392664 + ... + 28741392697.

It is an arithmetic number, because the mean of its divisors is an integer number (258672534129).

Almost surely, 2^977207351137 is an apocalyptic number.

It is an amenable number.

977207351137 is a deficient number, since it is larger than the sum of its proper divisors (57482785379).

977207351137 is a wasteful number, since it uses less digits than its factorization.

977207351137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57482785378.

The product of its (nonzero) digits is 1944810, while the sum is 52.

The spelling of 977207351137 in words is "nine hundred seventy-seven billion, two hundred seven million, three hundred fifty-one thousand, one hundred thirty-seven".