696656314139 has 4 divisors (see below), whose sum is σ = 696733225320. Its totient is φ = 696579402960.

The previous prime is 696656314117. The next prime is 696656314163. The reversal of 696656314139 is 931413656696.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-696656314139 is a prime.

It is a super-2 number, since 2×696656314139² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (696656314639) 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, 38442002 + ... + 38460119.

It is an arithmetic number, because the mean of its divisors is an integer number (174183306330).

Almost surely, 2^696656314139 is an apocalyptic number.

696656314139 is a deficient number, since it is larger than the sum of its proper divisors (76911181).

696656314139 is an equidigital number, since it uses as much as digits as its factorization.

696656314139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76911180.

The product of its digits is 18895680, while the sum is 59.

The spelling of 696656314139 in words is "six hundred ninety-six billion, six hundred fifty-six million, three hundred fourteen thousand, one hundred thirty-nine".