47187442901864 has 16 divisors (see below), whose sum is σ = 88873210849920. Its totient is φ = 23487920008560.

The previous prime is 47187442901821. The next prime is 47187442901891. The reversal of 47187442901864 is 46810924478174.

It is a self number, because there is not a number n which added to its sum of digits gives 47187442901864.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13225178402 + ... + 13225181969.

It is an arithmetic number, because the mean of its divisors is an integer number (5554575678120).

Almost surely, 2^{47187442901864} is an apocalyptic number.

It is an amenable number.

47187442901864 is a deficient number, since it is larger than the sum of its proper divisors (41685767948056).

47187442901864 is a wasteful number, since it uses less digits than its factorization.

47187442901864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26450360600 (or 26450360596 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 65.

The spelling of 47187442901864 in words is "forty-seven trillion, one hundred eighty-seven billion, four hundred forty-two million, nine hundred one thousand, eight hundred sixty-four".