976681841761 has 4 divisors (see below), whose sum is σ = 977389071124. Its totient is φ = 975974612400.

The previous prime is 976681841749. The next prime is 976681841783. The reversal of 976681841761 is 167148186679.

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 756386787025 + 220295054736 = 869705^2 + 469356^2 .

It is a cyclic number.

It is not a de Polignac number, because 976681841761 - 2²¹ = 976679744609 is a prime.

It is a super-2 number, since 2×976681841761² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 976681841693 and 976681841702.

It is not an unprimeable number, because it can be changed into a prime (974681841761) 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, 353612610 + ... + 353615371.

It is an arithmetic number, because the mean of its divisors is an integer number (244347267781).

Almost surely, 2^976681841761 is an apocalyptic number.

It is an amenable number.

976681841761 is a deficient number, since it is larger than the sum of its proper divisors (707229363).

976681841761 is a wasteful number, since it uses less digits than its factorization.

976681841761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707229362.

The product of its digits is 24385536, while the sum is 64.

The spelling of 976681841761 in words is "nine hundred seventy-six billion, six hundred eighty-one million, eight hundred forty-one thousand, seven hundred sixty-one".