344857338551 has 4 divisors (see below), whose sum is σ = 376208005704. Its totient is φ = 313506671400.

The previous prime is 344857338547. The next prime is 344857338569. The reversal of 344857338551 is 155833758443.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 344857338551 - 2² = 344857338547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344857338251) 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, 15675333560 + ... + 15675333581.

It is an arithmetic number, because the mean of its divisors is an integer number (94052001426).

Almost surely, 2^344857338551 is an apocalyptic number.

344857338551 is a deficient number, since it is larger than the sum of its proper divisors (31350667153).

344857338551 is a wasteful number, since it uses less digits than its factorization.

344857338551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31350667152.

The product of its digits is 24192000, while the sum is 56.

The spelling of 344857338551 in words is "three hundred forty-four billion, eight hundred fifty-seven million, three hundred thirty-eight thousand, five hundred fifty-one".