47877855478478 has 16 divisors (see below), whose sum is σ = 71863859778480. Its totient is φ = 23923236228096.

The previous prime is 47877855478471. The next prime is 47877855478483. The reversal of 47877855478478 is 87487455877874.

47877855478478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 47877855478393 and 47877855478402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47877855478471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169231676 + ... + 169514352.

It is an arithmetic number, because the mean of its divisors is an integer number (4491491236155).

Almost surely, 2^{47877855478478} is an apocalyptic number.

47877855478478 is a deficient number, since it is larger than the sum of its proper divisors (23986004300002).

47877855478478 is a wasteful number, since it uses less digits than its factorization.

47877855478478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337891.

The product of its digits is 110146355200, while the sum is 89.

The spelling of 47877855478478 in words is "forty-seven trillion, eight hundred seventy-seven billion, eight hundred fifty-five million, four hundred seventy-eight thousand, four hundred seventy-eight".