70617313537 has 4 divisors (see below), whose sum is σ = 70618309056. Its totient is φ = 70616318020.

The previous prime is 70617313531. The next prime is 70617313561. The reversal of 70617313537 is 73531371607.

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 70617313537 - 2⁷ = 70617313409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70617313493 and 70617313502.

It is not an unprimeable number, because it can be changed into a prime (70617313531) 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, 382453 + ... + 536194.

It is an arithmetic number, because the mean of its divisors is an integer number (17654577264).

Almost surely, 2^70617313537 is an apocalyptic number.

It is an amenable number.

70617313537 is a deficient number, since it is larger than the sum of its proper divisors (995519).

70617313537 is an equidigital number, since it uses as much as digits as its factorization.

70617313537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995518.

The product of its (nonzero) digits is 277830, while the sum is 43.

The spelling of 70617313537 in words is "seventy billion, six hundred seventeen million, three hundred thirteen thousand, five hundred thirty-seven".