3693964278545 has 64 divisors (see below), whose sum is σ = 5013838517760. Its totient is φ = 2595911270400.

The previous prime is 3693964278517. The next prime is 3693964278547. The reversal of 3693964278545 is 5458724693963.

3693964278545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3693964278545 - 2¹⁸ = 3693964016401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (71).

It is not an unprimeable number, because it can be changed into a prime (3693964278547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 164303705 + ... + 164326185.

It is an arithmetic number, because the mean of its divisors is an integer number (78341226840).

Almost surely, 2^{3693964278545} is an apocalyptic number.

It is an amenable number.

3693964278545 is a deficient number, since it is larger than the sum of its proper divisors (1319874239215).

3693964278545 is a wasteful number, since it uses less digits than its factorization.

3693964278545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24026.

The product of its digits is 1175731200, while the sum is 71.

The spelling of 3693964278545 in words is "three trillion, six hundred ninety-three billion, nine hundred sixty-four million, two hundred seventy-eight thousand, five hundred forty-five".