63387799680091 has 2 divisors, whose sum is σ = 63387799680092. Its totient is φ = 63387799680090.

The previous prime is 63387799680071. The next prime is 63387799680103. The reversal of 63387799680091 is 19008699778336.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63387799680091 - 2³⁹ = 62838043866203 is a prime.

It is not a weakly prime, because it can be changed into another prime (63387799680041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31693899840045 + 31693899840046.

It is an arithmetic number, because the mean of its divisors is an integer number (31693899840046).

Almost surely, 2^{63387799680091} is an apocalyptic number.

63387799680091 is a deficient number, since it is larger than the sum of its proper divisors (1).

63387799680091 is an equidigital number, since it uses as much as digits as its factorization.

63387799680091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 740710656, while the sum is 76.

The spelling of 63387799680091 in words is "sixty-three trillion, three hundred eighty-seven billion, seven hundred ninety-nine million, six hundred eighty thousand, ninety-one".