3745817515906 has 64 divisors (see below), whose sum is σ = 6066462729600. Its totient is φ = 1728272646144.

The previous prime is 3745817515897. The next prime is 3745817515933. The reversal of 3745817515906 is 6095157185473.

It is a super-2 number, since 2×3745817515906² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 435100530 + ... + 435109138.

It is an arithmetic number, because the mean of its divisors is an integer number (94788480150).

Almost surely, 2^{3745817515906} is an apocalyptic number.

3745817515906 is a deficient number, since it is larger than the sum of its proper divisors (2320645213694).

3745817515906 is a wasteful number, since it uses less digits than its factorization.

3745817515906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9571.

The product of its (nonzero) digits is 31752000, while the sum is 61.

The spelling of 3745817515906 in words is "three trillion, seven hundred forty-five billion, eight hundred seventeen million, five hundred fifteen thousand, nine hundred six".