63876805497 has 10 divisors (see below), whose sum is σ = 95420907098. Its totient is φ = 42584536944.

The previous prime is 63876805471. The next prime is 63876805523. The reversal of 63876805497 is 79450867836.

63876805497 is a `hidden beast` number, since 6 + 3 + 8 + 7 + 6 + 80 + 549 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (63876805471) and next prime (63876805523).

It can be written as a sum of positive squares in only one way, i.e., 61430118201 + 2446687296 = 247851^2 + 49464^2 .

It is not a de Polignac number, because 63876805497 - 2¹⁴ = 63876789113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63876805897) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 394301188 + ... + 394301349.

Almost surely, 2^63876805497 is an apocalyptic number.

It is an amenable number.

63876805497 is a deficient number, since it is larger than the sum of its proper divisors (31544101601).

63876805497 is an equidigital number, since it uses as much as digits as its factorization.

63876805497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788602549 (or 788602540 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 63876805497 in words is "sixty-three billion, eight hundred seventy-six million, eight hundred five thousand, four hundred ninety-seven".