40858523987 has 2 divisors, whose sum is σ = 40858523988. Its totient is φ = 40858523986.

The previous prime is 40858523983. The next prime is 40858524011. The reversal of 40858523987 is 78932585804.

40858523987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40858523987 - 2² = 40858523983 is a prime.

It is not a weakly prime, because it can be changed into another prime (40858523983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20429261993 + 20429261994.

It is an arithmetic number, because the mean of its divisors is an integer number (20429261994).

Almost surely, 2^40858523987 is an apocalyptic number.

40858523987 is a deficient number, since it is larger than the sum of its proper divisors (1).

40858523987 is an equidigital number, since it uses as much as digits as its factorization.

40858523987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19353600, while the sum is 59.

The spelling of 40858523987 in words is "forty billion, eight hundred fifty-eight million, five hundred twenty-three thousand, nine hundred eighty-seven".