8439689702961 has 48 divisors (see below), whose sum is σ = 13537817774208. Its totient is φ = 5023333209600.

The previous prime is 8439689702957. The next prime is 8439689703019. The reversal of 8439689702961 is 1692079869348.

8439689702961 is a `hidden beast` number, since 8 + 4 + 396 + 89 + 70 + 2 + 96 + 1 = 666.

It is not a de Polignac number, because 8439689702961 - 2² = 8439689702957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8439689702961.

It is not an unprimeable number, because it can be changed into a prime (8439689707961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2827225 + ... + 4987241.

It is an arithmetic number, because the mean of its divisors is an integer number (282037870296).

Almost surely, 2^{8439689702961} is an apocalyptic number.

It is an amenable number.

8439689702961 is a deficient number, since it is larger than the sum of its proper divisors (5098128071247).

8439689702961 is a wasteful number, since it uses less digits than its factorization.

8439689702961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160742 (or 2160739 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 72.

The spelling of 8439689702961 in words is "eight trillion, four hundred thirty-nine billion, six hundred eighty-nine million, seven hundred two thousand, nine hundred sixty-one".