977702480065 has 16 divisors (see below), whose sum is σ = 1195426202256. Its totient is φ = 767374316800.

The previous prime is 977702480033. The next prime is 977702480113. The reversal of 977702480065 is 560084207779.

It can be written as a sum of positive squares in 8 ways, for example, as 4733302401 + 972969177664 = 68799^2 + 986392^2 .

It is not a de Polignac number, because 977702480065 - 2⁵ = 977702480033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 977702479988 and 977702480015.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8812035 + ... + 8922295.

It is an arithmetic number, because the mean of its divisors is an integer number (74714137641).

Almost surely, 2^977702480065 is an apocalyptic number.

It is an amenable number.

977702480065 is a deficient number, since it is larger than the sum of its proper divisors (217723722191).

977702480065 is a wasteful number, since it uses less digits than its factorization.

977702480065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143780.

The product of its (nonzero) digits is 5927040, while the sum is 55.

The spelling of 977702480065 in words is "nine hundred seventy-seven billion, seven hundred two million, four hundred eighty thousand, sixty-five".