71462976881 has 4 divisors (see below), whose sum is σ = 71649564672. Its totient is φ = 71276389092.

The previous prime is 71462976877. The next prime is 71462976887. The reversal of 71462976881 is 18867926417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18867926417 = 59 ⋅319795363.

It is a cyclic number.

It is not a de Polignac number, because 71462976881 - 2² = 71462976877 is a prime.

It is a super-2 number, since 2×71462976881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71462976881.

It is not an unprimeable number, because it can be changed into a prime (71462976887) 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, 93293321 + ... + 93294086.

It is an arithmetic number, because the mean of its divisors is an integer number (17912391168).

Almost surely, 2^71462976881 is an apocalyptic number.

It is an amenable number.

71462976881 is a deficient number, since it is larger than the sum of its proper divisors (186587791).

71462976881 is a wasteful number, since it uses less digits than its factorization.

71462976881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186587790.

The product of its digits is 8128512, while the sum is 59.

The spelling of 71462976881 in words is "seventy-one billion, four hundred sixty-two million, nine hundred seventy-six thousand, eight hundred eighty-one".