40504052987 has 2 divisors, whose sum is σ = 40504052988. Its totient is φ = 40504052986.

The previous prime is 40504052909. The next prime is 40504053013. The reversal of 40504052987 is 78925040504.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40504052987 - 2³² = 36209085691 is a prime.

It is not a weakly prime, because it can be changed into another prime (40504052087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20252026493 + 20252026494.

It is an arithmetic number, because the mean of its divisors is an integer number (20252026494).

Almost surely, 2^40504052987 is an apocalyptic number.

40504052987 is a deficient number, since it is larger than the sum of its proper divisors (1).

40504052987 is an equidigital number, since it uses as much as digits as its factorization.

40504052987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 40504052987 in words is "forty billion, five hundred four million, fifty-two thousand, nine hundred eighty-seven".