3756268649 has 4 divisors (see below), whose sum is σ = 4292878464. Its totient is φ = 3219658836.

The previous prime is 3756268627. The next prime is 3756268661. The reversal of 3756268649 is 9468626573.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3756268649 - 2¹² = 3756264553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3756268594 and 3756268603.

It is not an unprimeable number, because it can be changed into a prime (3756268619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268304897 + ... + 268304910.

It is an arithmetic number, because the mean of its divisors is an integer number (1073219616).

Almost surely, 2^3756268649 is an apocalyptic number.

It is an amenable number.

3756268649 is a deficient number, since it is larger than the sum of its proper divisors (536609815).

3756268649 is an equidigital number, since it uses as much as digits as its factorization.

3756268649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536609814.

The product of its digits is 13063680, while the sum is 56.

The square root of 3756268649 is about 61288.4055021829. The cubic root of 3756268649 is about 1554.4814666003.

The spelling of 3756268649 in words is "three billion, seven hundred fifty-six million, two hundred sixty-eight thousand, six hundred forty-nine".