71822752072 has 8 divisors (see below), whose sum is σ = 134667660150. Its totient is φ = 35911376032.

The previous prime is 71822752069. The next prime is 71822752091. The reversal of 71822752072 is 27025722817.

It can be written as a sum of positive squares in only one way, i.e., 63914918596 + 7907833476 = 252814^2 + 88926^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4488921997 + ... + 4488922012.

Almost surely, 2^71822752072 is an apocalyptic number.

It is an amenable number.

71822752072 is a deficient number, since it is larger than the sum of its proper divisors (62844908078).

71822752072 is a wasteful number, since it uses less digits than its factorization.

71822752072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8977844015 (or 8977844011 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 43.

The spelling of 71822752072 in words is "seventy-one billion, eight hundred twenty-two million, seven hundred fifty-two thousand, seventy-two".