71486747480 has 32 divisors (see below), whose sum is σ = 162320835600. Its totient is φ = 28332360576.

The previous prime is 71486747477. The next prime is 71486747483. The reversal of 71486747480 is 8474768417.

It is an interprime number because it is at equal distance from previous prime (71486747477) and next prime (71486747483).

It is a super-2 number, since 2×71486747480² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71486747483) 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, 8193662 + ... + 8202381.

Almost surely, 2^71486747480 is an apocalyptic number.

It is an amenable number.

71486747480 is an abundant number, since it is smaller than the sum of its proper divisors (90834088120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71486747480 is a wasteful number, since it uses less digits than its factorization.

71486747480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16396163 (or 16396159 counting only the distinct ones).

The product of its (nonzero) digits is 8429568, while the sum is 56.

The spelling of 71486747480 in words is "seventy-one billion, four hundred eighty-six million, seven hundred forty-seven thousand, four hundred eighty".