3865281401500 has 24 divisors (see below), whose sum is σ = 8441774581968. Its totient is φ = 1546112560400.

The previous prime is 3865281401491. The next prime is 3865281401533. The reversal of 3865281401500 is 51041825683.

It is a congruent number.

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, 3865280902 + ... + 3865281901.

It is an arithmetic number, because the mean of its divisors is an integer number (351740607582).

Almost surely, 2^{3865281401500} is an apocalyptic number.

It is an amenable number.

3865281401500 is an abundant number, since it is smaller than the sum of its proper divisors (4576493180468).

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

3865281401500 is a wasteful number, since it uses less digits than its factorization.

3865281401500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7730562822 (or 7730562810 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 3865281401500 in words is "three trillion, eight hundred sixty-five billion, two hundred eighty-one million, four hundred one thousand, five hundred".