40515515063 has 2 divisors, whose sum is σ = 40515515064. Its totient is φ = 40515515062.

The previous prime is 40515515039. The next prime is 40515515107. The reversal of 40515515063 is 36051551504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40515515063 - 2⁶ = 40515514999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40515515023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20257757531 + 20257757532.

It is an arithmetic number, because the mean of its divisors is an integer number (20257757532).

Almost surely, 2^40515515063 is an apocalyptic number.

40515515063 is a deficient number, since it is larger than the sum of its proper divisors (1).

40515515063 is an equidigital number, since it uses as much as digits as its factorization.

40515515063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 40515515063 in words is "forty billion, five hundred fifteen million, five hundred fifteen thousand, sixty-three".