40512523149 has 36 divisors (see below), whose sum is σ = 71043248224. Its totient is φ = 21788237952.

The previous prime is 40512523123. The next prime is 40512523169. The reversal of 40512523149 is 94132521504.

40512523149 is a `hidden beast` number, since 40 + 51 + 2 + 523 + 1 + 49 = 666.

It is not a de Polignac number, because 40512523149 - 2⁹ = 40512522637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40512523169) 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 35 ways as a sum of consecutive naturals, for example, 1094347 + ... + 1130760.

Almost surely, 2^40512523149 is an apocalyptic number.

It is an amenable number.

40512523149 is a deficient number, since it is larger than the sum of its proper divisors (30530725075).

40512523149 is a wasteful number, since it uses less digits than its factorization.

40512523149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225154 (or 2225134 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 40512523149 in words is "forty billion, five hundred twelve million, five hundred twenty-three thousand, one hundred forty-nine".