955639000639 has 4 divisors (see below), whose sum is σ = 955791397120. Its totient is φ = 955486604160.

The previous prime is 955639000619. The next prime is 955639000661. The reversal of 955639000639 is 936000936559.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 955639000639 - 2¹³ = 955638992447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 955639000639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (955639000619) 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, 76188834 + ... + 76201375.

It is an arithmetic number, because the mean of its divisors is an integer number (238947849280).

Almost surely, 2^955639000639 is an apocalyptic number.

955639000639 is a deficient number, since it is larger than the sum of its proper divisors (152396481).

955639000639 is a wasteful number, since it uses less digits than its factorization.

955639000639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152396480.

The product of its (nonzero) digits is 5904900, while the sum is 55.

The spelling of 955639000639 in words is "nine hundred fifty-five billion, six hundred thirty-nine million, six hundred thirty-nine", and thus it is an aban number.