30972955643 has 8 divisors (see below), whose sum is σ = 35399001312. Its totient is φ = 26547244416.

The previous prime is 30972955619. The next prime is 30972955661. The reversal of 30972955643 is 34655927903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30972955643 - 2¹² = 30972951547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30972955243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163571 + ... + 297827.

It is an arithmetic number, because the mean of its divisors is an integer number (4424875164).

Almost surely, 2^30972955643 is an apocalyptic number.

30972955643 is a deficient number, since it is larger than the sum of its proper divisors (4426045669).

30972955643 is a wasteful number, since it uses less digits than its factorization.

30972955643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167221.

The product of its (nonzero) digits is 6123600, while the sum is 53.

The spelling of 30972955643 in words is "thirty billion, nine hundred seventy-two million, nine hundred fifty-five thousand, six hundred forty-three".