47700385478 has 4 divisors (see below), whose sum is σ = 71550578220. Its totient is φ = 23850192738.

The previous prime is 47700385477. The next prime is 47700385501. The reversal of 47700385478 is 87458300774.

47700385478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47700385477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11925096368 + ... + 11925096371.

It is an arithmetic number, because the mean of its divisors is an integer number (17887644555).

Almost surely, 2^47700385478 is an apocalyptic number.

47700385478 is a deficient number, since it is larger than the sum of its proper divisors (23850192742).

47700385478 is a wasteful number, since it uses less digits than its factorization.

47700385478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23850192741.

The product of its (nonzero) digits is 5268480, while the sum is 53.

The spelling of 47700385478 in words is "forty-seven billion, seven hundred million, three hundred eighty-five thousand, four hundred seventy-eight".