47187442901863 has 4 divisors (see below), whose sum is σ = 51477210438408. Its totient is φ = 42897675365320.

The previous prime is 47187442901821. The next prime is 47187442901891. The reversal of 47187442901863 is 36810924478174.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47187442901863 - 2²⁹ = 47186906030951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47187442901795 and 47187442901804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47187442901803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2144883768256 + ... + 2144883768277.

It is an arithmetic number, because the mean of its divisors is an integer number (12869302609602).

Almost surely, 2^{47187442901863} is an apocalyptic number.

47187442901863 is a deficient number, since it is larger than the sum of its proper divisors (4289767536545).

47187442901863 is a wasteful number, since it uses less digits than its factorization.

47187442901863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289767536544.

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 47187442901863 in words is "forty-seven trillion, one hundred eighty-seven billion, four hundred forty-two million, nine hundred one thousand, eight hundred sixty-three".