976893047681 has 2 divisors, whose sum is σ = 976893047682. Its totient is φ = 976893047680.

The previous prime is 976893047609. The next prime is 976893047717. The reversal of 976893047681 is 186740398679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886196304400 + 90696743281 = 941380^2 + 301159^2 .

It is a cyclic number.

It is not a de Polignac number, because 976893047681 - 2²⁶ = 976825938817 is a prime.

It is a super-2 number, since 2×976893047681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (976893044681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488446523840 + 488446523841.

It is an arithmetic number, because the mean of its divisors is an integer number (488446523841).

Almost surely, 2^976893047681 is an apocalyptic number.

It is an amenable number.

976893047681 is a deficient number, since it is larger than the sum of its proper divisors (1).

976893047681 is an equidigital number, since it uses as much as digits as its factorization.

976893047681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 109734912, while the sum is 68.

The spelling of 976893047681 in words is "nine hundred seventy-six billion, eight hundred ninety-three million, forty-seven thousand, six hundred eighty-one".