3655239249423 has 32 divisors (see below), whose sum is σ = 4987493118720. Its totient is φ = 2380319136000.

The previous prime is 3655239249401. The next prime is 3655239249427. The reversal of 3655239249423 is 3249429325563.

It is a happy number.

It is a Cunningham number, because it is equal to 1911868²-1.

It is not a de Polignac number, because 3655239249423 - 2⁵ = 3655239249391 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3655239249427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101310915 + ... + 101346987.

It is an arithmetic number, because the mean of its divisors is an integer number (155859159960).

Almost surely, 2^{3655239249423} is an apocalyptic number.

3655239249423 is a deficient number, since it is larger than the sum of its proper divisors (1332253869297).

3655239249423 is a wasteful number, since it uses less digits than its factorization.

3655239249423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38919.

The product of its digits is 41990400, while the sum is 57.

The spelling of 3655239249423 in words is "three trillion, six hundred fifty-five billion, two hundred thirty-nine million, two hundred forty-nine thousand, four hundred twenty-three".