71404652560 has 40 divisors (see below), whose sum is σ = 175781456856. Its totient is φ = 26881751040.

The previous prime is 71404652521. The next prime is 71404652587. The reversal of 71404652560 is 6525640417.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15028798464 + 56375854096 = 122592^2 + 237436^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26250351 + ... + 26253070.

Almost surely, 2^71404652560 is an apocalyptic number.

It is an amenable number.

71404652560 is an abundant number, since it is smaller than the sum of its proper divisors (104376804296).

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

71404652560 is a wasteful number, since it uses less digits than its factorization.

71404652560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52503451 (or 52503445 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 71404652560 in words is "seventy-one billion, four hundred four million, six hundred fifty-two thousand, five hundred sixty".