40511552539 has 2 divisors, whose sum is σ = 40511552540. Its totient is φ = 40511552538.

The previous prime is 40511552489. The next prime is 40511552591. The reversal of 40511552539 is 93525511504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40511552539 - 2³¹ = 38364068891 is a prime.

It is not a weakly prime, because it can be changed into another prime (40511652539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20255776269 + 20255776270.

It is an arithmetic number, because the mean of its divisors is an integer number (20255776270).

Almost surely, 2^40511552539 is an apocalyptic number.

40511552539 is a deficient number, since it is larger than the sum of its proper divisors (1).

40511552539 is an equidigital number, since it uses as much as digits as its factorization.

40511552539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 40511552539 in words is "forty billion, five hundred eleven million, five hundred fifty-two thousand, five hundred thirty-nine".