71772064752 has 40 divisors (see below), whose sum is σ = 186242635264. Its totient is φ = 23816735424.

The previous prime is 71772064733. The next prime is 71772064787. The reversal of 71772064752 is 25746027717.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 3341878 + ... + 3363285.

Almost surely, 2^71772064752 is an apocalyptic number.

It is an amenable number.

71772064752 is an abundant number, since it is smaller than the sum of its proper divisors (114470570512).

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

71772064752 is a wasteful number, since it uses less digits than its factorization.

71772064752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705397 (or 6705391 counting only the distinct ones).

The product of its (nonzero) digits is 1152480, while the sum is 48.

The spelling of 71772064752 in words is "seventy-one billion, seven hundred seventy-two million, sixty-four thousand, seven hundred fifty-two".