71934712487 has 8 divisors (see below), whose sum is σ = 78476296080. Its totient is φ = 65393472960.

The previous prime is 71934712453. The next prime is 71934712511. The reversal of 71934712487 is 78421743917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71934712487 - 2²⁸ = 71666277031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71934715487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566189 + ... + 681497.

It is an arithmetic number, because the mean of its divisors is an integer number (9809537010).

Almost surely, 2^71934712487 is an apocalyptic number.

71934712487 is a deficient number, since it is larger than the sum of its proper divisors (6541583593).

71934712487 is a wasteful number, since it uses less digits than its factorization.

71934712487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172033.

The product of its digits is 2370816, while the sum is 53.

The spelling of 71934712487 in words is "seventy-one billion, nine hundred thirty-four million, seven hundred twelve thousand, four hundred eighty-seven".