3902880081893 has 4 divisors (see below), whose sum is σ = 4203101626668. Its totient is φ = 3602658537120.

The previous prime is 3902880081883. The next prime is 3902880081941. The reversal of 3902880081893 is 3981800882093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1305164583844 + 2597715498049 = 1142438^2 + 1611743^2 .

It is a cyclic number.

It is not a de Polignac number, because 3902880081893 - 2¹⁴ = 3902880065509 is a prime.

It is a super-2 number, since 2×3902880081893² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3902880081833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150110772368 + ... + 150110772393.

It is an arithmetic number, because the mean of its divisors is an integer number (1050775406667).

Almost surely, 2^{3902880081893} is an apocalyptic number.

It is an amenable number.

3902880081893 is a deficient number, since it is larger than the sum of its proper divisors (300221544775).

3902880081893 is a wasteful number, since it uses less digits than its factorization.

3902880081893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300221544774.

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 3902880081893 in words is "three trillion, nine hundred two billion, eight hundred eighty million, eighty-one thousand, eight hundred ninety-three".