30478867056 has 80 divisors (see below), whose sum is σ = 95438891520. Its totient is φ = 9236018880.

The previous prime is 30478867049. The next prime is 30478867103. The reversal of 30478867056 is 65076887403.

It is a super-2 number, since 2×30478867056² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 30478866993 and 30478867011.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3202200 + ... + 3211703.

It is an arithmetic number, because the mean of its divisors is an integer number (1192986144).

Almost surely, 2^30478867056 is an apocalyptic number.

30478867056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30478867056 is an abundant number, since it is smaller than the sum of its proper divisors (64960024464).

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

30478867056 is a wasteful number, since it uses less digits than its factorization.

30478867056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413931 (or 6413919 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 30478867056 in words is "thirty billion, four hundred seventy-eight million, eight hundred sixty-seven thousand, fifty-six".