30077761506 has 64 divisors (see below), whose sum is σ = 65480862720. Its totient is φ = 9155177280.

The previous prime is 30077761433. The next prime is 30077761537. The reversal of 30077761506 is 60516777003.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12684501 + ... + 12686871.

It is an arithmetic number, because the mean of its divisors is an integer number (1023138480).

Almost surely, 2^30077761506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30077761506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32740431360).

30077761506 is an abundant number, since it is smaller than the sum of its proper divisors (35403101214).

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

30077761506 is a wasteful number, since it uses less digits than its factorization.

30077761506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4071.

The product of its (nonzero) digits is 185220, while the sum is 42.

The spelling of 30077761506 in words is "thirty billion, seventy-seven million, seven hundred sixty-one thousand, five hundred six".