3865427158100 has 18 divisors (see below), whose sum is σ = 8387976933294. Its totient is φ = 1546170863200.

The previous prime is 3865427158097. The next prime is 3865427158157. The reversal of 3865427158100 is 18517245683.

It can be written as a sum of positive squares in 3 ways, for example, as 11641744 + 3865415516356 = 3412^2 + 1966066^2 .

It is a super-2 number, since 2×3865427158100² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19327135691 + ... + 19327135890.

Almost surely, 2^{3865427158100} is an apocalyptic number.

It is an amenable number.

3865427158100 is an abundant number, since it is smaller than the sum of its proper divisors (4522549775194).

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

3865427158100 is a wasteful number, since it uses less digits than its factorization.

3865427158100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38654271595 (or 38654271588 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 3865427158100 in words is "three trillion, eight hundred sixty-five billion, four hundred twenty-seven million, one hundred fifty-eight thousand, one hundred".