3752321649 has 4 divisors (see below), whose sum is σ = 5003095536. Its totient is φ = 2501547764.

The previous prime is 3752321627. The next prime is 3752321653. The reversal of 3752321649 is 9461232573.

3752321649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3752321649 - 2⁸ = 3752321393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3752321649.

It is not an unprimeable number, because it can be changed into a prime (3752321659) 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, 625386939 + ... + 625386944.

It is an arithmetic number, because the mean of its divisors is an integer number (1250773884).

Almost surely, 2^3752321649 is an apocalyptic number.

It is an amenable number.

3752321649 is a deficient number, since it is larger than the sum of its proper divisors (1250773887).

3752321649 is a wasteful number, since it uses less digits than its factorization.

3752321649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250773886.

The product of its digits is 272160, while the sum is 42.

The square root of 3752321649 is about 61256.1968212196. The cubic root of 3752321649 is about 1553.9368047559.

The spelling of 3752321649 in words is "three billion, seven hundred fifty-two million, three hundred twenty-one thousand, six hundred forty-nine".