40860687529 has 2 divisors, whose sum is σ = 40860687530. Its totient is φ = 40860687528.

The previous prime is 40860687523. The next prime is 40860687533. The reversal of 40860687529 is 92578606804.

40860687529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40392960400 + 467727129 = 200980^2 + 21627^2 .

It is a cyclic number.

It is not a de Polignac number, because 40860687529 - 2¹³ = 40860679337 is a prime.

It is a super-2 number, since 2×40860687529² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40860687529.

It is not a weakly prime, because it can be changed into another prime (40860687523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20430343764 + 20430343765.

It is an arithmetic number, because the mean of its divisors is an integer number (20430343765).

Almost surely, 2^40860687529 is an apocalyptic number.

It is an amenable number.

40860687529 is a deficient number, since it is larger than the sum of its proper divisors (1).

40860687529 is an equidigital number, since it uses as much as digits as its factorization.

40860687529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 40860687529 in words is "forty billion, eight hundred sixty million, six hundred eighty-seven thousand, five hundred twenty-nine".