3905742765 has 48 divisors (see below), whose sum is σ = 6510007296. Its totient is φ = 1999468800.

The previous prime is 3905742739. The next prime is 3905742767. The reversal of 3905742765 is 5672475093.

It is not a de Polignac number, because 3905742765 - 2¹¹ = 3905740717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3905742767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2408655 + ... + 2410275.

It is an arithmetic number, because the mean of its divisors is an integer number (135625152).

Almost surely, 2^3905742765 is an apocalyptic number.

It is an amenable number.

3905742765 is a deficient number, since it is larger than the sum of its proper divisors (2604264531).

3905742765 is a wasteful number, since it uses less digits than its factorization.

3905742765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 48.

The square root of 3905742765 is about 62495.9419882603. The cubic root of 3905742765 is about 1574.8331413054.

The spelling of 3905742765 in words is "three billion, nine hundred five million, seven hundred forty-two thousand, seven hundred sixty-five".