39420533855 has 8 divisors (see below), whose sum is σ = 47345674992. Its totient is φ = 31509070848.

The previous prime is 39420533807. The next prime is 39420533869. The reversal of 39420533855 is 55833502493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39420533855 - 2¹⁶ = 39420468319 is a prime.

It is a super-3 number, since 3×39420533855³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3413189 + ... + 3424718.

It is an arithmetic number, because the mean of its divisors is an integer number (5918209374).

Almost surely, 2^39420533855 is an apocalyptic number.

39420533855 is a deficient number, since it is larger than the sum of its proper divisors (7925141137).

39420533855 is a wasteful number, since it uses less digits than its factorization.

39420533855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839065.

The product of its (nonzero) digits is 1944000, while the sum is 47.

The spelling of 39420533855 in words is "thirty-nine billion, four hundred twenty million, five hundred thirty-three thousand, eight hundred fifty-five".