63387608291 has 12 divisors (see below), whose sum is σ = 73763202960. Its totient is φ = 54312637680.

The previous prime is 63387608279. The next prime is 63387608351. The reversal of 63387608291 is 19280678336.

It is a de Polignac number, because none of the positive numbers 2^k-63387608291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63387608191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95255 + ... + 368576.

It is an arithmetic number, because the mean of its divisors is an integer number (6146933580).

Almost surely, 2^63387608291 is an apocalyptic number.

63387608291 is a deficient number, since it is larger than the sum of its proper divisors (10375594669).

63387608291 is a wasteful number, since it uses less digits than its factorization.

63387608291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466634 (or 466627 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The spelling of 63387608291 in words is "sixty-three billion, three hundred eighty-seven million, six hundred eight thousand, two hundred ninety-one".