916851692761 has 4 divisors (see below), whose sum is σ = 916853884900. Its totient is φ = 916849500624.

The previous prime is 916851692711. The next prime is 916851692791. The reversal of 916851692761 is 167296158619.

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 912873237136 + 3978455625 = 955444^2 + 63075^2 .

It is a cyclic number.

It is not a de Polignac number, because 916851692761 - 2³⁷ = 779412739289 is a prime.

It is a super-2 number, since 2×916851692761² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 916851692761.

It is not an unprimeable number, because it can be changed into a prime (916851692711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252066 + ... + 1377403.

It is an arithmetic number, because the mean of its divisors is an integer number (229213471225).

Almost surely, 2^916851692761 is an apocalyptic number.

It is an amenable number.

916851692761 is a deficient number, since it is larger than the sum of its proper divisors (2192139).

916851692761 is a wasteful number, since it uses less digits than its factorization.

916851692761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192138.

The product of its digits is 9797760, while the sum is 61.

The spelling of 916851692761 in words is "nine hundred sixteen billion, eight hundred fifty-one million, six hundred ninety-two thousand, seven hundred sixty-one".