30772000981 has 8 divisors (see below), whose sum is σ = 32413810400. Its totient is φ = 29132414640.

The previous prime is 30772000967. The next prime is 30772001021. The reversal of 30772000981 is 18900027703.

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

It is a cyclic number.

It is not a de Polignac number, because 30772000981 - 2²⁹ = 30235130069 is a prime.

It is a super-2 number, since 2×30772000981² (a number of 22 digits) contains 22 as substring.

It is the 175420-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30772000981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30772000901) by changing a digit.

It is a nontrivial repunit in base 175419.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 527310 + ... + 582751.

It is an arithmetic number, because the mean of its divisors is an integer number (4051726300).

Almost surely, 2^30772000981 is an apocalyptic number.

It is an amenable number.

30772000981 is a deficient number, since it is larger than the sum of its proper divisors (1641809419).

30772000981 is a wasteful number, since it uses less digits than its factorization.

30772000981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111539.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 30772000981 in words is "thirty billion, seven hundred seventy-two million, nine hundred eighty-one", and thus it is an aban number.