47878215814 has 48 divisors (see below), whose sum is σ = 85487920560. Its totient is φ = 19976299200.

The previous prime is 47878215799. The next prime is 47878215823. The reversal of 47878215814 is 41851287874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520624 + ... + 605644.

It is an arithmetic number, because the mean of its divisors is an integer number (1780998345).

Almost surely, 2^47878215814 is an apocalyptic number.

47878215814 is a deficient number, since it is larger than the sum of its proper divisors (37609704746).

47878215814 is a wasteful number, since it uses less digits than its factorization.

47878215814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85237 (or 85226 counting only the distinct ones).

The product of its digits is 4014080, while the sum is 55.

The spelling of 47878215814 in words is "forty-seven billion, eight hundred seventy-eight million, two hundred fifteen thousand, eight hundred fourteen".