30249257138912 has 96 divisors (see below), whose sum is σ = 70258518134784. Its totient is φ = 12545385753600.

The previous prime is 30249257138911. The next prime is 30249257138939. The reversal of 30249257138912 is 21983175294203.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30249257138911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369109013 + ... + 369190955.

It is an arithmetic number, because the mean of its divisors is an integer number (731859563904).

Almost surely, 2^{30249257138912} is an apocalyptic number.

30249257138912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30249257138912 is an abundant number, since it is smaller than the sum of its proper divisors (40009260995872).

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

30249257138912 is a wasteful number, since it uses less digits than its factorization.

30249257138912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135152 (or 135144 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 30249257138912 in words is "thirty trillion, two hundred forty-nine billion, two hundred fifty-seven million, one hundred thirty-eight thousand, nine hundred twelve".