15847329903942 has 16 divisors (see below), whose sum is σ = 31723394780160. Its totient is φ = 5277654139272.

The previous prime is 15847329903931. The next prime is 15847329903947. The reversal of 15847329903942 is 24930992374851.

It is a happy number.

It is a super-2 number, since 2×15847329903942² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15847329903947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197283342 + ... + 1197296577.

It is an arithmetic number, because the mean of its divisors is an integer number (1982712173760).

Almost surely, 2^{15847329903942} is an apocalyptic number.

15847329903942 is an abundant number, since it is smaller than the sum of its proper divisors (15876064876218).

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

15847329903942 is a wasteful number, since it uses less digits than its factorization.

15847329903942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394581027.

The product of its (nonzero) digits is 117573120, while the sum is 66.

The spelling of 15847329903942 in words is "fifteen trillion, eight hundred forty-seven billion, three hundred twenty-nine million, nine hundred three thousand, nine hundred forty-two".