30720465674 has 4 divisors (see below), whose sum is σ = 46080698514. Its totient is φ = 15360232836.

The previous prime is 30720465613. The next prime is 30720465703. The reversal of 30720465674 is 47656402703.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29277605449 + 1442860225 = 171107^2 + 37985^2 .

It is a super-2 number, since 2×30720465674² (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, 7680116417 + ... + 7680116420.

Almost surely, 2^30720465674 is an apocalyptic number.

30720465674 is a deficient number, since it is larger than the sum of its proper divisors (15360232840).

30720465674 is a wasteful number, since it uses less digits than its factorization.

30720465674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15360232839.

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 30720465674 in words is "thirty billion, seven hundred twenty million, four hundred sixty-five thousand, six hundred seventy-four".