240415205897687 has 2 divisors, whose sum is σ = 240415205897688. Its totient is φ = 240415205897686.

The previous prime is 240415205897651. The next prime is 240415205897719. The reversal of 240415205897687 is 786798502514042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240415205897687 - 2¹² = 240415205893591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240415205897617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120207602948843 + 120207602948844.

It is an arithmetic number, because the mean of its divisors is an integer number (120207602948844).

Almost surely, 2^{240415205897687} is an apocalyptic number.

240415205897687 is a deficient number, since it is larger than the sum of its proper divisors (1).

240415205897687 is an equidigital number, since it uses as much as digits as its factorization.

240415205897687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270950400, while the sum is 68.

The spelling of 240415205897687 in words is "two hundred forty trillion, four hundred fifteen billion, two hundred five million, eight hundred ninety-seven thousand, six hundred eighty-seven".