39156107243 has 16 divisors (see below), whose sum is σ = 43184793600. Its totient is φ = 35206466880.

The previous prime is 39156107203. The next prime is 39156107251. The reversal of 39156107243 is 34270165193.

It is a cyclic number.

It is not a de Polignac number, because 39156107243 - 2²² = 39151912939 is a prime.

It is a super-2 number, since 2×39156107243² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39156107243.

It is not an unprimeable number, because it can be changed into a prime (39156107203) 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, 895238 + ... + 937956.

It is an arithmetic number, because the mean of its divisors is an integer number (2699049600).

Almost surely, 2^39156107243 is an apocalyptic number.

39156107243 is a deficient number, since it is larger than the sum of its proper divisors (4028686357).

39156107243 is a wasteful number, since it uses less digits than its factorization.

39156107243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43642.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 39156107243 in words is "thirty-nine billion, one hundred fifty-six million, one hundred seven thousand, two hundred forty-three".