3756868949 has 2 divisors, whose sum is σ = 3756868950. Its totient is φ = 3756868948.

The previous prime is 3756868939. The next prime is 3756869009. The reversal of 3756868949 is 9498686573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3678422500 + 78446449 = 60650^2 + 8857^2 .

It is a cyclic number.

It is not a de Polignac number, because 3756868949 - 2⁸ = 3756868693 is a prime.

It is a super-2 number, since 2×3756868949² = 28228128599920729202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3756868939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1878434474 + 1878434475.

It is an arithmetic number, because the mean of its divisors is an integer number (1878434475).

Almost surely, 2^3756868949 is an apocalyptic number.

It is an amenable number.

3756868949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3756868949 is an equidigital number, since it uses as much as digits as its factorization.

3756868949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78382080, while the sum is 65.

The square root of 3756868949 is about 61293.3026439268. The cubic root of 3756868949 is about 1554.5642708942.

The spelling of 3756868949 in words is "three billion, seven hundred fifty-six million, eight hundred sixty-eight thousand, nine hundred forty-nine".