30678165408 has 48 divisors (see below), whose sum is σ = 87851113056. Its totient is φ = 9296413440.

The previous prime is 30678165379. The next prime is 30678165449. The reversal of 30678165408 is 80456187603.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×30678165408² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 7 ways as a sum of consecutive naturals, for example, 14524591 + ... + 14526702.

It is an arithmetic number, because the mean of its divisors is an integer number (1830231522).

Almost surely, 2^30678165408 is an apocalyptic number.

It is an amenable number.

30678165408 is an abundant number, since it is smaller than the sum of its proper divisors (57172947648).

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

30678165408 is a wasteful number, since it uses less digits than its factorization.

30678165408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29051317 (or 29051309 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 30678165408 in words is "thirty billion, six hundred seventy-eight million, one hundred sixty-five thousand, four hundred eight".