71970894032 has 20 divisors (see below), whose sum is σ = 140797431840. Its totient is φ = 35636072928.

The previous prime is 71970894011. The next prime is 71970894053. The reversal of 71970894032 is 23049807917.

It is an interprime number because it is at equal distance from previous prime (71970894011) and next prime (71970894053).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21834182 + ... + 21837477.

It is an arithmetic number, because the mean of its divisors is an integer number (7039871592).

Almost surely, 2^71970894032 is an apocalyptic number.

It is an amenable number.

71970894032 is a deficient number, since it is larger than the sum of its proper divisors (68826537808).

71970894032 is a wasteful number, since it uses less digits than its factorization.

71970894032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43671770 (or 43671764 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 71970894032 in words is "seventy-one billion, nine hundred seventy million, eight hundred ninety-four thousand, thirty-two".