13702357857 has 4 divisors (see below), whose sum is σ = 18269810480. Its totient is φ = 9134905236.

The previous prime is 13702357843. The next prime is 13702357883. The reversal of 13702357857 is 75875320731.

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 not a de Polignac number, because 13702357857 - 2⁷ = 13702357729 is a prime.

It is a super-2 number, since 2×13702357857² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13702357657) 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, 2283726307 + ... + 2283726312.

It is an arithmetic number, because the mean of its divisors is an integer number (4567452620).

Almost surely, 2^13702357857 is an apocalyptic number.

It is an amenable number.

13702357857 is a deficient number, since it is larger than the sum of its proper divisors (4567452623).

13702357857 is an equidigital number, since it uses as much as digits as its factorization.

13702357857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567452622.

The product of its (nonzero) digits is 1234800, while the sum is 48.

The spelling of 13702357857 in words is "thirteen billion, seven hundred two million, three hundred fifty-seven thousand, eight hundred fifty-seven".