3756561245 has 32 divisors (see below), whose sum is σ = 4868591616. Its totient is φ = 2776780800.

The previous prime is 3756561233. The next prime is 3756561251. The reversal of 3756561245 is 5421656573.

It is a happy number.

It is not a de Polignac number, because 3756561245 - 2⁸ = 3756560989 is a prime.

It is a super-2 number, since 2×3756561245² = 28223504774871900050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3756561196 and 3756561205.

It is a congruent number.

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, 292397 + ... + 304973.

It is an arithmetic number, because the mean of its divisors is an integer number (152143488).

Almost surely, 2^3756561245 is an apocalyptic number.

It is an amenable number.

3756561245 is a deficient number, since it is larger than the sum of its proper divisors (1112030371).

3756561245 is a wasteful number, since it uses less digits than its factorization.

3756561245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12701.

The product of its digits is 756000, while the sum is 44.

The square root of 3756561245 is about 61290.7924977317. The cubic root of 3756561245 is about 1554.5218278642.

The spelling of 3756561245 in words is "three billion, seven hundred fifty-six million, five hundred sixty-one thousand, two hundred forty-five".