40245406087 has 2 divisors, whose sum is σ = 40245406088. Its totient is φ = 40245406086.

The previous prime is 40245406037. The next prime is 40245406099. The reversal of 40245406087 is 78060454204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40245406087 - 2¹⁹ = 40244881799 is a prime.

It is a super-2 number, since 2×40245406087² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40245406027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20122703043 + 20122703044.

It is an arithmetic number, because the mean of its divisors is an integer number (20122703044).

Almost surely, 2^40245406087 is an apocalyptic number.

40245406087 is a deficient number, since it is larger than the sum of its proper divisors (1).

40245406087 is an equidigital number, since it uses as much as digits as its factorization.

40245406087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 40.

The spelling of 40245406087 in words is "forty billion, two hundred forty-five million, four hundred six thousand, eighty-seven".