3640406463 has 8 divisors (see below), whose sum is σ = 5393194800. Its totient is φ = 2426937624.

The previous prime is 3640406459. The next prime is 3640406467. The reversal of 3640406463 is 3646040463.

3640406463 is a `hidden beast` number, since 3 + 6 + 4 + 0 + 4 + 0 + 646 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (3640406459) and next prime (3640406467).

It is not a de Polignac number, because 3640406463 - 2² = 3640406459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640406467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67414908 + ... + 67414961.

It is an arithmetic number, because the mean of its divisors is an integer number (674149350).

Almost surely, 2^3640406463 is an apocalyptic number.

3640406463 is a deficient number, since it is larger than the sum of its proper divisors (1752788337).

3640406463 is a wasteful number, since it uses less digits than its factorization.

3640406463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134829878 (or 134829872 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

The square root of 3640406463 is about 60335.7809512730. The cubic root of 3640406463 is about 1538.3315915378.

The spelling of 3640406463 in words is "three billion, six hundred forty million, four hundred six thousand, four hundred sixty-three".