3642555123 has 8 divisors (see below), whose sum is σ = 5396378000. Its totient is φ = 2428370064.

The previous prime is 3642555083. The next prime is 3642555143. The reversal of 3642555123 is 3215552463.

3642555123 is a `hidden beast` number, since 3 + 64 + 25 + 551 + 23 = 666.

It is not a de Polignac number, because 3642555123 - 2¹⁰ = 3642554099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3642555143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67454698 + ... + 67454751.

It is an arithmetic number, because the mean of its divisors is an integer number (674547250).

Almost surely, 2^3642555123 is an apocalyptic number.

3642555123 is a deficient number, since it is larger than the sum of its proper divisors (1753822877).

3642555123 is a wasteful number, since it uses less digits than its factorization.

3642555123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134909458 (or 134909452 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 3642555123 is about 60353.5841769153. The cubic root of 3642555123 is about 1538.6341860881.

The spelling of 3642555123 in words is "three billion, six hundred forty-two million, five hundred fifty-five thousand, one hundred twenty-three".