939253863947 has 24 divisors (see below), whose sum is σ = 1175837286240. Its totient is φ = 745295765760.

The previous prime is 939253863881. The next prime is 939253863973. The reversal of 939253863947 is 749368352939.

It is a happy number.

It is not a de Polignac number, because 939253863947 - 2²⁶ = 939186755083 is a prime.

It is a super-3 number, since 3×939253863947³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (939253863347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9191447 + ... + 9293072.

It is an arithmetic number, because the mean of its divisors is an integer number (48993220260).

Almost surely, 2^939253863947 is an apocalyptic number.

939253863947 is a deficient number, since it is larger than the sum of its proper divisors (236583422293).

939253863947 is a wasteful number, since it uses less digits than its factorization.

939253863947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18484611 (or 18484604 counting only the distinct ones).

The product of its digits is 264539520, while the sum is 68.

The spelling of 939253863947 in words is "nine hundred thirty-nine billion, two hundred fifty-three million, eight hundred sixty-three thousand, nine hundred forty-seven".