47781582266670 has 128 divisors (see below), whose sum is σ = 131291874846720. Its totient is φ = 10902023884800.

The previous prime is 47781582266657. The next prime is 47781582266723. The reversal of 47781582266670 is 7666228518774.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 47781582266595 and 47781582266604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1387409311 + ... + 1387443749.

It is an arithmetic number, because the mean of its divisors is an integer number (1025717772240).

Almost surely, 2^{47781582266670} is an apocalyptic number.

47781582266670 is an abundant number, since it is smaller than the sum of its proper divisors (83510292580050).

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

47781582266670 is a wasteful number, since it uses less digits than its factorization.

47781582266670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46050.

The product of its (nonzero) digits is 379330560, while the sum is 69.

The spelling of 47781582266670 in words is "forty-seven trillion, seven hundred eighty-one billion, five hundred eighty-two million, two hundred sixty-six thousand, six hundred seventy".