40012552539 has 24 divisors (see below), whose sum is σ = 59798597040. Its totient is φ = 25751017152.

The previous prime is 40012552519. The next prime is 40012552603. The reversal of 40012552539 is 93525521004.

It is a happy number.

40012552539 is a `hidden beast` number, since 4 + 0 + 0 + 125 + 525 + 3 + 9 = 666.

It is not a de Polignac number, because 40012552539 - 2¹⁶ = 40012487003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40012552519) 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 23 ways as a sum of consecutive naturals, for example, 2864817 + ... + 2878749.

It is an arithmetic number, because the mean of its divisors is an integer number (2491608210).

Almost surely, 2^40012552539 is an apocalyptic number.

40012552539 is a deficient number, since it is larger than the sum of its proper divisors (19786044501).

40012552539 is a wasteful number, since it uses less digits than its factorization.

40012552539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24971 (or 24968 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 40012552539 in words is "forty billion, twelve million, five hundred fifty-two thousand, five hundred thirty-nine".