63198687051 has 32 divisors (see below), whose sum is σ = 96582113280. Its totient is φ = 40813007328.

The previous prime is 63198687029. The next prime is 63198687073. The reversal of 63198687051 is 15078689136.

It is an interprime number because it is at equal distance from previous prime (63198687029) and next prime (63198687073).

It is not a de Polignac number, because 63198687051 - 2¹⁸ = 63198424907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63198687011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87430 + ... + 366116.

It is an arithmetic number, because the mean of its divisors is an integer number (3018191040).

Almost surely, 2^63198687051 is an apocalyptic number.

63198687051 is a deficient number, since it is larger than the sum of its proper divisors (33383426229).

63198687051 is a wasteful number, since it uses less digits than its factorization.

63198687051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278960 (or 278954 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 63198687051 in words is "sixty-three billion, one hundred ninety-eight million, six hundred eighty-seven thousand, fifty-one".