30839615942 has 4 divisors (see below), whose sum is σ = 46259423916. Its totient is φ = 15419807970.

The previous prime is 30839615929. The next prime is 30839615993. The reversal of 30839615942 is 24951693803.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24951693803 = 211 ⋅118254473.

It is a super-2 number, since 2×30839615942² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7709903984 + ... + 7709903987.

It is an arithmetic number, because the mean of its divisors is an integer number (11564855979).

Almost surely, 2^30839615942 is an apocalyptic number.

30839615942 is a deficient number, since it is larger than the sum of its proper divisors (15419807974).

30839615942 is a wasteful number, since it uses less digits than its factorization.

30839615942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15419807973.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 30839615942 in words is "thirty billion, eight hundred thirty-nine million, six hundred fifteen thousand, nine hundred forty-two".