3642394217862 has 64 divisors (see below), whose sum is σ = 7764416040960. Its totient is φ = 1136629389984.

The previous prime is 3642394217831. The next prime is 3642394217897. The reversal of 3642394217862 is 2687124932463.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 862863 + ... + 2833605.

It is an arithmetic number, because the mean of its divisors is an integer number (121319000640).

Almost surely, 2^{3642394217862} is an apocalyptic number.

3642394217862 is an abundant number, since it is smaller than the sum of its proper divisors (4122021823098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3642394217862 is a wasteful number, since it uses less digits than its factorization.

3642394217862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971057.

The product of its digits is 20901888, while the sum is 57.

The spelling of 3642394217862 in words is "three trillion, six hundred forty-two billion, three hundred ninety-four million, two hundred seventeen thousand, eight hundred sixty-two".