30388180957 has 16 divisors (see below), whose sum is σ = 32005531008. Its totient is φ = 28796264640.

The previous prime is 30388180909. The next prime is 30388180967. The reversal of 30388180957 is 75908188303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30388180957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30388180967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1838743 + ... + 1855195.

It is an arithmetic number, because the mean of its divisors is an integer number (2000345688).

Almost surely, 2^30388180957 is an apocalyptic number.

It is an amenable number.

30388180957 is a deficient number, since it is larger than the sum of its proper divisors (1617350051).

30388180957 is a wasteful number, since it uses less digits than its factorization.

30388180957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17220.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 30388180957 in words is "thirty billion, three hundred eighty-eight million, one hundred eighty thousand, nine hundred fifty-seven".