30979070540 has 48 divisors (see below), whose sum is σ = 71147420064. Its totient is φ = 11236992000.

The previous prime is 30979070537. The next prime is 30979070561. The reversal of 30979070540 is 4507097903.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 30979070491 and 30979070500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87359 + ... + 263798.

It is an arithmetic number, because the mean of its divisors is an integer number (1482237918).

Almost surely, 2^30979070540 is an apocalyptic number.

It is an amenable number.

30979070540 is an abundant number, since it is smaller than the sum of its proper divisors (40168349524).

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

30979070540 is a wasteful number, since it uses less digits than its factorization.

30979070540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351578 (or 351576 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The spelling of 30979070540 in words is "thirty billion, nine hundred seventy-nine million, seventy thousand, five hundred forty".