30719834561 has 12 divisors (see below), whose sum is σ = 33270629760. Its totient is φ = 28351692720.

The previous prime is 30719834503. The next prime is 30719834567. The reversal of 30719834561 is 16543891703.

It is a happy number.

It is not a de Polignac number, because 30719834561 - 2¹⁰ = 30719833537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30719834567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1197176 + ... + 1222566.

It is an arithmetic number, because the mean of its divisors is an integer number (2772552480).

Almost surely, 2^30719834561 is an apocalyptic number.

It is an amenable number.

30719834561 is a deficient number, since it is larger than the sum of its proper divisors (2550795199).

30719834561 is a wasteful number, since it uses less digits than its factorization.

30719834561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32576 (or 32563 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 30719834561 in words is "thirty billion, seven hundred nineteen million, eight hundred thirty-four thousand, five hundred sixty-one".