30999679074 has 256 divisors, whose sum is σ = 86884761600. Its totient is φ = 7975936512.

The previous prime is 30999679049. The next prime is 30999679103. The reversal of 30999679074 is 47097699903.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 36947947 + ... + 36948785.

It is an arithmetic number, because the mean of its divisors is an integer number (339393600).

Almost surely, 2^30999679074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30999679074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43442380800).

30999679074 is an abundant number, since it is smaller than the sum of its proper divisors (55885082526).

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

30999679074 is a wasteful number, since it uses less digits than its factorization.

30999679074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 23147208, while the sum is 63.

The spelling of 30999679074 in words is "thirty billion, nine hundred ninety-nine million, six hundred seventy-nine thousand, seventy-four".