342747261157 has 4 divisors (see below), whose sum is σ = 391711155616. Its totient is φ = 293783366700.

The previous prime is 342747261097. The next prime is 342747261169. The reversal of 342747261157 is 751162747243.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 342747261157 - 2²³ = 342738872549 is a prime.

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 342747261157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342747561157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24481947219 + ... + 24481947232.

It is an arithmetic number, because the mean of its divisors is an integer number (97927788904).

Almost surely, 2^342747261157 is an apocalyptic number.

It is an amenable number.

342747261157 is a deficient number, since it is larger than the sum of its proper divisors (48963894459).

342747261157 is an equidigital number, since it uses as much as digits as its factorization.

342747261157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48963894458.

The product of its digits is 1975680, while the sum is 49.

The spelling of 342747261157 in words is "three hundred forty-two billion, seven hundred forty-seven million, two hundred sixty-one thousand, one hundred fifty-seven".