40504125187 has 2 divisors, whose sum is σ = 40504125188. Its totient is φ = 40504125186.

The previous prime is 40504125139. The next prime is 40504125199. The reversal of 40504125187 is 78152140504.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40504125187 is a prime.

It is not a weakly prime, because it can be changed into another prime (40504122187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20252062593 + 20252062594.

It is an arithmetic number, because the mean of its divisors is an integer number (20252062594).

Almost surely, 2^40504125187 is an apocalyptic number.

40504125187 is a deficient number, since it is larger than the sum of its proper divisors (1).

40504125187 is an equidigital number, since it uses as much as digits as its factorization.

40504125187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 40504125187 in words is "forty billion, five hundred four million, one hundred twenty-five thousand, one hundred eighty-seven".