63871140434572 has 36 divisors (see below), whose sum is σ = 118781536575744. Its totient is φ = 30045538074880.

The previous prime is 63871140434561. The next prime is 63871140434587. The reversal of 63871140434572 is 27543404117836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7510348 + ... + 13570099.

It is an arithmetic number, because the mean of its divisors is an integer number (3299487127104).

Almost surely, 2^{63871140434572} is an apocalyptic number.

It is an amenable number.

63871140434572 is a deficient number, since it is larger than the sum of its proper divisors (54910396141172).

63871140434572 is a wasteful number, since it uses less digits than its factorization.

63871140434572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21083106 (or 21083087 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 55.

The spelling of 63871140434572 in words is "sixty-three trillion, eight hundred seventy-one billion, one hundred forty million, four hundred thirty-four thousand, five hundred seventy-two".