30699893142 has 24 divisors (see below), whose sum is σ = 66633357960. Its totient is φ = 10215309600.

The previous prime is 30699893083. The next prime is 30699893143. The reversal of 30699893142 is 24139899603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30699893143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1488484 + ... + 1508967.

It is an arithmetic number, because the mean of its divisors is an integer number (2776389915).

Almost surely, 2^30699893142 is an apocalyptic number.

30699893142 is an abundant number, since it is smaller than the sum of its proper divisors (35933464818).

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

30699893142 is a wasteful number, since it uses less digits than its factorization.

30699893142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998028 (or 2998025 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 54.

The spelling of 30699893142 in words is "thirty billion, six hundred ninety-nine million, eight hundred ninety-three thousand, one hundred forty-two".