3813507445472 has 24 divisors (see below), whose sum is σ = 7512125747616. Its totient is φ = 1905665985792.

The previous prime is 3813507445421. The next prime is 3813507445483. The reversal of 3813507445472 is 2745447053183.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33934808 + ... + 34046999.

It is an arithmetic number, because the mean of its divisors is an integer number (313005239484).

Almost surely, 2^{3813507445472} is an apocalyptic number.

3813507445472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3813507445472 is a deficient number, since it is larger than the sum of its proper divisors (3698618302144).

3813507445472 is a wasteful number, since it uses less digits than its factorization.

3813507445472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67983570 (or 67983562 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 53.

The spelling of 3813507445472 in words is "three trillion, eight hundred thirteen billion, five hundred seven million, four hundred forty-five thousand, four hundred seventy-two".