70137898693 has 4 divisors (see below), whose sum is σ = 70139747500. Its totient is φ = 70136049888.

The previous prime is 70137898681. The next prime is 70137898729. The reversal of 70137898693 is 39689873107.

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

It can be written as a sum of positive squares in 2 ways, for example, as 57615841089 + 12522057604 = 240033^2 + 111902^2 .

It is a cyclic number.

It is not a de Polignac number, because 70137898693 - 2²⁹ = 69601027781 is a prime.

It is a super-2 number, since 2×70137898693² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70137898613) 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, 866280 + ... + 943777.

It is an arithmetic number, because the mean of its divisors is an integer number (17534936875).

Almost surely, 2^70137898693 is an apocalyptic number.

It is an amenable number.

70137898693 is a deficient number, since it is larger than the sum of its proper divisors (1848807).

70137898693 is a wasteful number, since it uses less digits than its factorization.

70137898693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848806.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 70137898693 in words is "seventy billion, one hundred thirty-seven million, eight hundred ninety-eight thousand, six hundred ninety-three".