3751521265 has 16 divisors (see below), whose sum is σ = 4649195520. Its totient is φ = 2903060160.

The previous prime is 3751521211. The next prime is 3751521299. The reversal of 3751521265 is 5621251573.

It is not a de Polignac number, because 3751521265 - 2²⁹ = 3214650353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449551 + ... + 457819.

It is an arithmetic number, because the mean of its divisors is an integer number (290574720).

Almost surely, 2^3751521265 is an apocalyptic number.

It is an amenable number.

3751521265 is a deficient number, since it is larger than the sum of its proper divisors (897674255).

3751521265 is a wasteful number, since it uses less digits than its factorization.

3751521265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11232.

The product of its digits is 63000, while the sum is 37.

The square root of 3751521265 is about 61249.6633868301. The cubic root of 3751521265 is about 1553.8263100885.

It can be divided in two parts, 375 and 1521265, that added together give a triangular number (1521640 = T₁₇₄₄).

The spelling of 3751521265 in words is "three billion, seven hundred fifty-one million, five hundred twenty-one thousand, two hundred sixty-five".