6263881381945 has 16 divisors (see below), whose sum is σ = 8200154724480. Its totient is φ = 4555458678400.

The previous prime is 6263881381897. The next prime is 6263881381981. The reversal of 6263881381945 is 5491831883626.

It is not a de Polignac number, because 6263881381945 - 2²⁷ = 6263747164217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1686060 + ... + 3920530.

It is an arithmetic number, because the mean of its divisors is an integer number (512509670280).

Almost surely, 2^{6263881381945} is an apocalyptic number.

It is an amenable number.

6263881381945 is a deficient number, since it is larger than the sum of its proper divisors (1936273342535).

6263881381945 is a wasteful number, since it uses less digits than its factorization.

6263881381945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285456.

The product of its digits is 59719680, while the sum is 64.

The spelling of 6263881381945 in words is "six trillion, two hundred sixty-three billion, eight hundred eighty-one million, three hundred eighty-one thousand, nine hundred forty-five".