786494802681 has 48 divisors (see below), whose sum is σ = 1389078970240. Its totient is φ = 418791720960.

The previous prime is 786494802641. The next prime is 786494802781. The reversal of 786494802681 is 186208494687.

786494802681 is a `hidden beast` number, since 7 + 8 + 6 + 494 + 80 + 2 + 68 + 1 = 666.

It is not a de Polignac number, because 786494802681 - 2⁶ = 786494802617 is a prime.

It is a super-2 number, since 2×786494802681² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (786494802631) 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, 5312680 + ... + 5458713.

Almost surely, 2^786494802681 is an apocalyptic number.

It is an amenable number.

786494802681 is a deficient number, since it is larger than the sum of its proper divisors (602584167559).

786494802681 is a wasteful number, since it uses less digits than its factorization.

786494802681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10771486 (or 10771483 counting only the distinct ones).

The product of its (nonzero) digits is 37158912, while the sum is 63.

The spelling of 786494802681 in words is "seven hundred eighty-six billion, four hundred ninety-four million, eight hundred two thousand, six hundred eighty-one".