30724407752 has 8 divisors (see below), whose sum is σ = 57608264550. Its totient is φ = 15362203872.

The previous prime is 30724407743. The next prime is 30724407787. The reversal of 30724407752 is 25770442703.

It can be written as a sum of positive squares in only one way, i.e., 27647043076 + 3077364676 = 166274^2 + 55474^2 .

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

It is a super-2 number, since 2×30724407752² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1920275477 + ... + 1920275492.

Almost surely, 2^30724407752 is an apocalyptic number.

It is an amenable number.

30724407752 is a deficient number, since it is larger than the sum of its proper divisors (26883856798).

30724407752 is a wasteful number, since it uses less digits than its factorization.

30724407752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840550975 (or 3840550971 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 41.

The spelling of 30724407752 in words is "thirty billion, seven hundred twenty-four million, four hundred seven thousand, seven hundred fifty-two".