639342432099711 has 48 divisors (see below), whose sum is σ = 956731155737760. Its totient is φ = 410931499345920.

The previous prime is 639342432099691. The next prime is 639342432099743. The reversal of 639342432099711 is 117990234243936.

It is a happy number.

639342432099711 is a `hidden beast` number, since 6 + 3 + 9 + 3 + 42 + 432 + 0 + 99 + 71 + 1 = 666.

It is not a de Polignac number, because 639342432099711 - 2⁶ = 639342432099647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (639342432099781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 670170931 + ... + 671124251.

It is an arithmetic number, because the mean of its divisors is an integer number (19931899077870).

Almost surely, 2^{639342432099711} is an apocalyptic number.

639342432099711 is a deficient number, since it is larger than the sum of its proper divisors (317388723638049).

639342432099711 is a wasteful number, since it uses less digits than its factorization.

639342432099711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957096 (or 957093 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 63.

The spelling of 639342432099711 in words is "six hundred thirty-nine trillion, three hundred forty-two billion, four hundred thirty-two million, ninety-nine thousand, seven hundred eleven".