345551765938 has 4 divisors (see below), whose sum is σ = 518327648910. Its totient is φ = 172775882968.

The previous prime is 345551765927. The next prime is 345551765953. The reversal of 345551765938 is 839567155543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 839567155543 = 47 ⋅17863130969.

It can be written as a sum of positive squares in only one way, i.e., 325615173129 + 19936592809 = 570627^2 + 141197^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86387941483 + ... + 86387941486.

Almost surely, 2^345551765938 is an apocalyptic number.

345551765938 is a deficient number, since it is larger than the sum of its proper divisors (172775882972).

345551765938 is a wasteful number, since it uses less digits than its factorization.

345551765938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172775882971.

The product of its digits is 68040000, while the sum is 61.

The spelling of 345551765938 in words is "three hundred forty-five billion, five hundred fifty-one million, seven hundred sixty-five thousand, nine hundred thirty-eight".