47278538470072 has 64 divisors (see below), whose sum is σ = 109105199723520. Its totient is φ = 18703446749568.

The previous prime is 47278538470067. The next prime is 47278538470091. The reversal of 47278538470072 is 27007483587274.

It is a junction number, because it is equal to n+sod(n) for n = 47278538469986 and 47278538470013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146390193 + ... + 146712799.

It is an arithmetic number, because the mean of its divisors is an integer number (1704768745680).

Almost surely, 2^{47278538470072} is an apocalyptic number.

It is an amenable number.

47278538470072 is an abundant number, since it is smaller than the sum of its proper divisors (61826661253448).

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

47278538470072 is a wasteful number, since it uses less digits than its factorization.

47278538470072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523940 (or 523936 counting only the distinct ones).

The product of its (nonzero) digits is 147517440, while the sum is 64.

The spelling of 47278538470072 in words is "forty-seven trillion, two hundred seventy-eight billion, five hundred thirty-eight million, four hundred seventy thousand, seventy-two".