40005102539 has 2 divisors, whose sum is σ = 40005102540. Its totient is φ = 40005102538.

The previous prime is 40005102517. The next prime is 40005102607. The reversal of 40005102539 is 93520150004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40005102539 - 2¹⁶ = 40005037003 is a prime.

It is not a weakly prime, because it can be changed into another prime (40005102139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002551269 + 20002551270.

It is an arithmetic number, because the mean of its divisors is an integer number (20002551270).

Almost surely, 2^40005102539 is an apocalyptic number.

40005102539 is a deficient number, since it is larger than the sum of its proper divisors (1).

40005102539 is an equidigital number, since it uses as much as digits as its factorization.

40005102539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 40005102539 in words is "forty billion, five million, one hundred two thousand, five hundred thirty-nine".