47818439378874 has 24 divisors (see below), whose sum is σ = 103607344649172. Its totient is φ = 15939368101440.

The previous prime is 47818439378849. The next prime is 47818439378887. The reversal of 47818439378874 is 47887393481874.

47818439378874 is a `hidden beast` number, since 4 + 7 + 8 + 1 + 8 + 439 + 37 + 88 + 74 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41315648675625 + 6502790703249 = 6427725^2 + 2550057^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47818439378793 and 47818439378802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6646939 + ... + 11824494.

Almost surely, 2^{47818439378874} is an apocalyptic number.

47818439378874 is an abundant number, since it is smaller than the sum of its proper divisors (55788905270298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47818439378874 is a wasteful number, since it uses less digits than its factorization.

47818439378874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18615262 (or 18615259 counting only the distinct ones).

The product of its digits is 7283146752, while the sum is 81.

The spelling of 47818439378874 in words is "forty-seven trillion, eight hundred eighteen billion, four hundred thirty-nine million, three hundred seventy-eight thousand, eight hundred seventy-four".