71292087963 has 24 divisors (see below), whose sum is σ = 107395223936. Its totient is φ = 45520704000.

The previous prime is 71292087943. The next prime is 71292087991. The reversal of 71292087963 is 36978029217.

It is not a de Polignac number, because 71292087963 - 2⁸ = 71292087707 is a prime.

It is a super-2 number, since 2×71292087963² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71292087943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1290088 + ... + 1344213.

Almost surely, 2^71292087963 is an apocalyptic number.

71292087963 is a deficient number, since it is larger than the sum of its proper divisors (36103135973).

71292087963 is a wasteful number, since it uses less digits than its factorization.

71292087963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634435 (or 2634432 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The spelling of 71292087963 in words is "seventy-one billion, two hundred ninety-two million, eighty-seven thousand, nine hundred sixty-three".