30742657506 has 48 divisors (see below), whose sum is σ = 76938851808. Its totient is φ = 8767958400.

The previous prime is 30742657501. The next prime is 30742657507. The reversal of 30742657506 is 60575624703.

30742657506 is a `hidden beast` number, since 3 + 0 + 74 + 2 + 6 + 575 + 0 + 6 = 666.

It is a super-2 number, since 2×30742657506² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30742657501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4563280 + ... + 4570011.

It is an arithmetic number, because the mean of its divisors is an integer number (1602892746).

Almost surely, 2^30742657506 is an apocalyptic number.

30742657506 is an abundant number, since it is smaller than the sum of its proper divisors (46196194302).

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

30742657506 is a wasteful number, since it uses less digits than its factorization.

30742657506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133327 (or 9133324 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 30742657506 in words is "thirty billion, seven hundred forty-two million, six hundred fifty-seven thousand, five hundred six".