40250123987 has 2 divisors, whose sum is σ = 40250123988. Its totient is φ = 40250123986.

The previous prime is 40250123959. The next prime is 40250124023. The reversal of 40250123987 is 78932105204.

40250123987 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 40250123987 - 2¹⁴ = 40250107603 is a prime.

It is not a weakly prime, because it can be changed into another prime (40250123957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20125061993 + 20125061994.

It is an arithmetic number, because the mean of its divisors is an integer number (20125061994).

Almost surely, 2^40250123987 is an apocalyptic number.

40250123987 is a deficient number, since it is larger than the sum of its proper divisors (1).

40250123987 is an equidigital number, since it uses as much as digits as its factorization.

40250123987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 40250123987 in words is "forty billion, two hundred fifty million, one hundred twenty-three thousand, nine hundred eighty-seven".