71620444732 has 48 divisors (see below), whose sum is σ = 131469206400. Its totient is φ = 34134050496.

The previous prime is 71620444723. The next prime is 71620444733. The reversal of 71620444732 is 23744402617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71620444733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7702278 + ... + 7711570.

It is an arithmetic number, because the mean of its divisors is an integer number (2738941800).

Almost surely, 2^71620444732 is an apocalyptic number.

It is an amenable number.

71620444732 is a deficient number, since it is larger than the sum of its proper divisors (59848761668).

71620444732 is an equidigital number, since it uses as much as digits as its factorization.

71620444732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9463 (or 9403 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 40.

The spelling of 71620444732 in words is "seventy-one billion, six hundred twenty million, four hundred forty-four thousand, seven hundred thirty-two".