10640951977 has 2 divisors, whose sum is σ = 10640951978. Its totient is φ = 10640951976.

The previous prime is 10640951963. The next prime is 10640951999. The reversal of 10640951977 is 77915904601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10613326441 + 27625536 = 103021^2 + 5256^2 .

It is a cyclic number.

It is not a de Polignac number, because 10640951977 - 2¹⁵ = 10640919209 is a prime.

It is a super-2 number, since 2×10640951977² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10640951977.

It is not a weakly prime, because it can be changed into another prime (10640951917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5320475988 + 5320475989.

It is an arithmetic number, because the mean of its divisors is an integer number (5320475989).

Almost surely, 2^10640951977 is an apocalyptic number.

It is an amenable number.

10640951977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10640951977 is an equidigital number, since it uses as much as digits as its factorization.

10640951977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 10640951977 in words is "ten billion, six hundred forty million, nine hundred fifty-one thousand, nine hundred seventy-seven".