3909745225874 has 16 divisors (see below), whose sum is σ = 5881606069248. Its totient is φ = 1949212779792.

The previous prime is 3909745225831. The next prime is 3909745225901. The reversal of 3909745225874 is 4785225479093.

It is a super-2 number, since 2×3909745225874² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3909745225874.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1968389 + ... + 3419655.

It is an arithmetic number, because the mean of its divisors is an integer number (367600379328).

Almost surely, 2^{3909745225874} is an apocalyptic number.

3909745225874 is a deficient number, since it is larger than the sum of its proper divisors (1971860843374).

3909745225874 is a wasteful number, since it uses less digits than its factorization.

3909745225874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455169.

The product of its (nonzero) digits is 152409600, while the sum is 65.

The spelling of 3909745225874 in words is "three trillion, nine hundred nine billion, seven hundred forty-five million, two hundred twenty-five thousand, eight hundred seventy-four".