3751313643 has 24 divisors (see below), whose sum is σ = 6755613696. Its totient is φ = 1948734000.

The previous prime is 3751313641. The next prime is 3751313693. The reversal of 3751313643 is 3463131573.

3751313643 is a `hidden beast` number, since 3 + 7 + 5 + 1 + 3 + 1 + 3 + 643 = 666.

It is not a de Polignac number, because 3751313643 - 2¹ = 3751313641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3751313598 and 3751313607.

It is not an unprimeable number, because it can be changed into a prime (3751313641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2705883 + ... + 2707268.

It is an arithmetic number, because the mean of its divisors is an integer number (281483904).

Almost surely, 2^3751313643 is an apocalyptic number.

3751313643 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3751313643 is a deficient number, since it is larger than the sum of its proper divisors (3004300053).

3751313643 is a wasteful number, since it uses less digits than its factorization.

3751313643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5413175 (or 5413172 counting only the distinct ones).

The product of its digits is 68040, while the sum is 36.

The square root of 3751313643 is about 61247.9684805953. The cubic root of 3751313643 is about 1553.7976448747.

The spelling of 3751313643 in words is "three billion, seven hundred fifty-one million, three hundred thirteen thousand, six hundred forty-three".