30501542772 has 72 divisors (see below), whose sum is σ = 79417257920. Its totient is φ = 9864892800.

The previous prime is 30501542737. The next prime is 30501542801. The reversal of 30501542772 is 27724510503.

30501542772 is a `hidden beast` number, since 30 + 501 + 54 + 2 + 7 + 72 = 666.

It is a super-2 number, since 2×30501542772² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168504 + ... + 298992.

Almost surely, 2^30501542772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30501542772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39708628960).

30501542772 is an abundant number, since it is smaller than the sum of its proper divisors (48915715148).

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

30501542772 is a wasteful number, since it uses less digits than its factorization.

30501542772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130693 (or 130688 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 30501542772 in words is "thirty billion, five hundred one million, five hundred forty-two thousand, seven hundred seventy-two".