90063788387 has 2 divisors, whose sum is σ = 90063788388. Its totient is φ = 90063788386.

The previous prime is 90063788363. The next prime is 90063788459. The reversal of 90063788387 is 78388736009.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90063788387 - 2⁸ = 90063788131 is a prime.

It is a super-2 number, since 2×90063788387² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (90063788357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45031894193 + 45031894194.

It is an arithmetic number, because the mean of its divisors is an integer number (45031894194).

Almost surely, 2^90063788387 is an apocalyptic number.

90063788387 is a deficient number, since it is larger than the sum of its proper divisors (1).

90063788387 is an equidigital number, since it uses as much as digits as its factorization.

90063788387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 90063788387 in words is "ninety billion, sixty-three million, seven hundred eighty-eight thousand, three hundred eighty-seven".