30722666972 has 6 divisors (see below), whose sum is σ = 53764667208. Its totient is φ = 15361333484.

The previous prime is 30722666957. The next prime is 30722666977. The reversal of 30722666972 is 27966622703.

It is a self number, because there is not a number n which added to its sum of digits gives 30722666972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30722666977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3840333368 + ... + 3840333375.

It is an arithmetic number, because the mean of its divisors is an integer number (8960777868).

Almost surely, 2^30722666972 is an apocalyptic number.

It is an amenable number.

30722666972 is a deficient number, since it is larger than the sum of its proper divisors (23042000236).

30722666972 is a wasteful number, since it uses less digits than its factorization.

30722666972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680666747 (or 7680666745 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 50.

The spelling of 30722666972 in words is "thirty billion, seven hundred twenty-two million, six hundred sixty-six thousand, nine hundred seventy-two".