939399340623 has 16 divisors (see below), whose sum is σ = 1262359296000. Its totient is φ = 621354818240.

The previous prime is 939399340609. The next prime is 939399340637. The reversal of 939399340623 is 326043993939.

It is an interprime number because it is at equal distance from previous prime (939399340609) and next prime (939399340637).

It is a cyclic number.

It is not a de Polignac number, because 939399340623 - 2⁵ = 939399340591 is a prime.

It is a super-2 number, since 2×939399340623² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939399340603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636963 + ... + 2135051.

It is an arithmetic number, because the mean of its divisors is an integer number (78897456000).

Almost surely, 2^939399340623 is an apocalyptic number.

939399340623 is a deficient number, since it is larger than the sum of its proper divisors (322959955377).

939399340623 is a wasteful number, since it uses less digits than its factorization.

939399340623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503022.

The product of its (nonzero) digits is 25509168, while the sum is 60.

The spelling of 939399340623 in words is "nine hundred thirty-nine billion, three hundred ninety-nine million, three hundred forty thousand, six hundred twenty-three".