40136877478557 has 12 divisors (see below), whose sum is σ = 58216051892284. Its totient is φ = 26646889610880.

The previous prime is 40136877478531. The next prime is 40136877478591. The reversal of 40136877478557 is 75587477863104.

40136877478557 is a `hidden beast` number, since 4 + 0 + 1 + 3 + 68 + 7 + 7 + 4 + 7 + 8 + 557 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21609612120996 + 18527265357561 = 4648614^2 + 4304331^2 .

It is not a de Polignac number, because 40136877478557 - 2⁶ = 40136877478493 is a prime.

It is a super-2 number, since 2×40136877478557² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40136877478507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9252390058 + ... + 9252394395.

Almost surely, 2^{40136877478557} is an apocalyptic number.

It is an amenable number.

40136877478557 is a deficient number, since it is larger than the sum of its proper divisors (18079174413727).

40136877478557 is a wasteful number, since it uses less digits than its factorization.

40136877478557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18504784700 (or 18504784697 counting only the distinct ones).

The product of its (nonzero) digits is 1106380800, while the sum is 72.

The spelling of 40136877478557 in words is "forty trillion, one hundred thirty-six billion, eight hundred seventy-seven million, four hundred seventy-eight thousand, five hundred fifty-seven".