30773612478 has 16 divisors (see below), whose sum is σ = 70339685760. Its totient is φ = 8792460696.

The previous prime is 30773612477. The next prime is 30773612539. The reversal of 30773612478 is 87421637703.

It is a super-2 number, since 2×30773612478² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30773612477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366352488 + ... + 366352571.

It is an arithmetic number, because the mean of its divisors is an integer number (4396230360).

Almost surely, 2^30773612478 is an apocalyptic number.

30773612478 is an abundant number, since it is smaller than the sum of its proper divisors (39566073282).

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

30773612478 is a wasteful number, since it uses less digits than its factorization.

30773612478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732705071.

The product of its (nonzero) digits is 1185408, while the sum is 48.

The spelling of 30773612478 in words is "thirty billion, seven hundred seventy-three million, six hundred twelve thousand, four hundred seventy-eight".