137435568635 has 4 divisors (see below), whose sum is σ = 164922682368. Its totient is φ = 109948454904.

The previous prime is 137435568607. The next prime is 137435568643. The reversal of 137435568635 is 536865534731.

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 137435568635 - 2¹⁶ = 137435503099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13743556859 + ... + 13743556868.

It is an arithmetic number, because the mean of its divisors is an integer number (41230670592).

Almost surely, 2^137435568635 is an apocalyptic number.

137435568635 is a deficient number, since it is larger than the sum of its proper divisors (27487113733).

137435568635 is an equidigital number, since it uses as much as digits as its factorization.

137435568635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27487113732.

The product of its digits is 27216000, while the sum is 56.

The spelling of 137435568635 in words is "one hundred thirty-seven billion, four hundred thirty-five million, five hundred sixty-eight thousand, six hundred thirty-five".