5642620836 has 24 divisors (see below), whose sum is σ = 13859069280. Its totient is φ = 1781880192.

The previous prime is 5642620801. The next prime is 5642620847. The reversal of 5642620836 is 6380262465.

It is a happy number.

It is a super-2 number, since 2×5642620836² = 63678339797722677792, which contains 22 as substring.

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, 12373941 + ... + 12374396.

It is an arithmetic number, because the mean of its divisors is an integer number (577461220).

Almost surely, 2^5642620836 is an apocalyptic number.

It is an amenable number.

5642620836 is an abundant number, since it is smaller than the sum of its proper divisors (8216448444).

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

5642620836 is a wasteful number, since it uses less digits than its factorization.

5642620836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24748363 (or 24748361 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 5642620836 is about 75117.3803856338. The cubic root of 5642620836 is about 1780.3017663696.

The spelling of 5642620836 in words is "five billion, six hundred forty-two million, six hundred twenty thousand, eight hundred thirty-six".