69631980709671 has 48 divisors (see below), whose sum is σ = 103151338576000. Its totient is φ = 45239320808640.

The previous prime is 69631980709663. The next prime is 69631980709693. The reversal of 69631980709671 is 17690708913696.

69631980709671 is a `hidden beast` number, since 6 + 96 + 319 + 8 + 0 + 70 + 96 + 71 = 666.

It is not a de Polignac number, because 69631980709671 - 2³ = 69631980709663 is a prime.

It is a super-2 number, since 2×69631980709671² (a number of 28 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 69631980709671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69631980709651) 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, 330689580 + ... + 330900078.

Almost surely, 2^{69631980709671} is an apocalyptic number.

69631980709671 is a deficient number, since it is larger than the sum of its proper divisors (33519357866329).

69631980709671 is a wasteful number, since it uses less digits than its factorization.

69631980709671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212476 (or 212473 counting only the distinct ones).

The product of its (nonzero) digits is 185177664, while the sum is 72.

The spelling of 69631980709671 in words is "sixty-nine trillion, six hundred thirty-one billion, nine hundred eighty million, seven hundred nine thousand, six hundred seventy-one".