47245572840 has 32 divisors (see below), whose sum is σ = 141736718880. Its totient is φ = 12598819392.

The previous prime is 47245572833. The next prime is 47245572841. The reversal of 47245572840 is 4827554274.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 47245572840.

It is not an unprimeable number, because it can be changed into a prime (47245572841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196856434 + ... + 196856673.

It is an arithmetic number, because the mean of its divisors is an integer number (4429272465).

Almost surely, 2^47245572840 is an apocalyptic number.

47245572840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47245572840 is an abundant number, since it is smaller than the sum of its proper divisors (94491146040).

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

47245572840 is a wasteful number, since it uses less digits than its factorization.

47245572840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393713121 (or 393713117 counting only the distinct ones).

The product of its (nonzero) digits is 2508800, while the sum is 48.

The spelling of 47245572840 in words is "forty-seven billion, two hundred forty-five million, five hundred seventy-two thousand, eight hundred forty".