30820078926 has 192 divisors, whose sum is σ = 84578178048. Its totient is φ = 7895314944.

The previous prime is 30820078879. The next prime is 30820078931. The reversal of 30820078926 is 62987002803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8009535 + ... + 8013381.

It is an arithmetic number, because the mean of its divisors is an integer number (440511344).

Almost surely, 2^30820078926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30820078926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42289089024).

30820078926 is an abundant number, since it is smaller than the sum of its proper divisors (53758099122).

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

30820078926 is a wasteful number, since it uses less digits than its factorization.

30820078926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015 (or 4012 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 30820078926 in words is "thirty billion, eight hundred twenty million, seventy-eight thousand, nine hundred twenty-six".