40638514149 has 12 divisors (see below), whose sum is σ = 58854962400. Its totient is φ = 27020856744.

The previous prime is 40638514121. The next prime is 40638514151. The reversal of 40638514149 is 94141583604.

40638514149 is a `hidden beast` number, since 4 + 0 + 638 + 5 + 1 + 4 + 1 + 4 + 9 = 666.

It is not a de Polignac number, because 40638514149 - 2⁹ = 40638513637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40638512149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5953569 + ... + 5960390.

It is an arithmetic number, because the mean of its divisors is an integer number (4904580200).

Almost surely, 2^40638514149 is an apocalyptic number.

It is an amenable number.

40638514149 is a deficient number, since it is larger than the sum of its proper divisors (18216448251).

40638514149 is a wasteful number, since it uses less digits than its factorization.

40638514149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11914344 (or 11914341 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 40638514149 in words is "forty billion, six hundred thirty-eight million, five hundred fourteen thousand, one hundred forty-nine".