30540342788 has 24 divisors (see below), whose sum is σ = 55186763520. Its totient is φ = 14773001760.

The previous prime is 30540342773. The next prime is 30540342817. The reversal of 30540342788 is 88724304503.

It is a super-2 number, since 2×30540342788² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381743 + ... + 454761.

It is an arithmetic number, because the mean of its divisors is an integer number (2299448480).

Almost surely, 2^30540342788 is an apocalyptic number.

It is an amenable number.

30540342788 is a deficient number, since it is larger than the sum of its proper divisors (24646420732).

30540342788 is a wasteful number, since it uses less digits than its factorization.

30540342788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76427 (or 76425 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 30540342788 in words is "thirty billion, five hundred forty million, three hundred forty-two thousand, seven hundred eighty-eight".