3813291545 has 32 divisors (see below), whose sum is σ = 5525625600. Its totient is φ = 2467881216.

The previous prime is 3813291499. The next prime is 3813291553. The reversal of 3813291545 is 5451923183.

It is a cyclic number.

It is not a de Polignac number, because 3813291545 - 2⁸ = 3813291289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168227 + ... + 189543.

It is an arithmetic number, because the mean of its divisors is an integer number (172675800).

Almost surely, 2^3813291545 is an apocalyptic number.

3813291545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3813291545 is a deficient number, since it is larger than the sum of its proper divisors (1712334055).

3813291545 is a wasteful number, since it uses less digits than its factorization.

3813291545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21617.

The product of its digits is 129600, while the sum is 41.

The square root of 3813291545 is about 61751.8545875345. The cubic root of 3813291545 is about 1562.3080486973.

The spelling of 3813291545 in words is "three billion, eight hundred thirteen million, two hundred ninety-one thousand, five hundred forty-five".