30861156352 has 112 divisors (see below), whose sum is σ = 66848931072. Its totient is φ = 14161674240.

The previous prime is 30861156323. The next prime is 30861156379. The reversal of 30861156352 is 25365116803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20978977 + ... + 20980447.

It is an arithmetic number, because the mean of its divisors is an integer number (596865456).

Almost surely, 2^30861156352 is an apocalyptic number.

30861156352 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30861156352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33424465536).

30861156352 is an abundant number, since it is smaller than the sum of its proper divisors (35987774720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30861156352 is a wasteful number, since it uses less digits than its factorization.

30861156352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 30861156352 in words is "thirty billion, eight hundred sixty-one million, one hundred fifty-six thousand, three hundred fifty-two".