345654638737 has 4 divisors (see below), whose sum is σ = 349010509120. Its totient is φ = 342298768356.

The previous prime is 345654638711. The next prime is 345654638767. The reversal of 345654638737 is 737836456543.

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 a de Polignac number, because none of the positive numbers 2^k-345654638737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345654638767) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1677935037 + ... + 1677935242.

It is an arithmetic number, because the mean of its divisors is an integer number (87252627280).

Almost surely, 2^345654638737 is an apocalyptic number.

It is an amenable number.

345654638737 is a deficient number, since it is larger than the sum of its proper divisors (3355870383).

345654638737 is a wasteful number, since it uses less digits than its factorization.

345654638737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355870382.

The product of its digits is 152409600, while the sum is 61.

The spelling of 345654638737 in words is "three hundred forty-five billion, six hundred fifty-four million, six hundred thirty-eight thousand, seven hundred thirty-seven".