3646431045 has 48 divisors (see below), whose sum is σ = 6448066560. Its totient is φ = 1905875712.

The previous prime is 3646431011. The next prime is 3646431053. The reversal of 3646431045 is 5401346463.

3646431045 is a `hidden beast` number, since 3 + 6 + 4 + 643 + 1 + 0 + 4 + 5 = 666.

3646431045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3646431045 - 2⁹ = 3646430533 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 483292 + ... + 490778.

It is an arithmetic number, because the mean of its divisors is an integer number (134334720).

Almost surely, 2^3646431045 is an apocalyptic number.

It is an amenable number.

3646431045 is a deficient number, since it is larger than the sum of its proper divisors (2801635515).

3646431045 is a wasteful number, since it uses less digits than its factorization.

3646431045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7714 (or 7711 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 3646431045 is about 60385.6857624388. The cubic root of 3646431045 is about 1539.1797291577.

The spelling of 3646431045 in words is "three billion, six hundred forty-six million, four hundred thirty-one thousand, forty-five".