701689478839 has 4 divisors (see below), whose sum is σ = 718007838856. Its totient is φ = 685371118824.

The previous prime is 701689478827. The next prime is 701689478887. The reversal of 701689478839 is 938874986107.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938874986107 = 19 ⋅49414472953.

It is a cyclic number.

It is not a de Polignac number, because 701689478839 - 2⁹ = 701689478327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (701689478639) 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, 8159179944 + ... + 8159180029.

It is an arithmetic number, because the mean of its divisors is an integer number (179501959714).

Almost surely, 2^701689478839 is an apocalyptic number.

701689478839 is a deficient number, since it is larger than the sum of its proper divisors (16318360017).

701689478839 is a wasteful number, since it uses less digits than its factorization.

701689478839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16318360016.

The product of its (nonzero) digits is 146313216, while the sum is 70.

The spelling of 701689478839 in words is "seven hundred one billion, six hundred eighty-nine million, four hundred seventy-eight thousand, eight hundred thirty-nine".