47815817120 has 48 divisors (see below), whose sum is σ = 116860219560. Its totient is φ = 18466796544.

The previous prime is 47815817113. The next prime is 47815817129. The reversal of 47815817120 is 2171851874.

It can be written as a sum of positive squares in 4 ways, for example, as 29734174096 + 18081643024 = 172436^2 + 134468^2 .

It is not an unprimeable number, because it can be changed into a prime (47815817129) 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, 5147927 + ... + 5157206.

Almost surely, 2^47815817120 is an apocalyptic number.

47815817120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47815817120 is an abundant number, since it is smaller than the sum of its proper divisors (69044402440).

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

47815817120 is a wasteful number, since it uses less digits than its factorization.

47815817120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305177 (or 10305169 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 44.

The spelling of 47815817120 in words is "forty-seven billion, eight hundred fifteen million, eight hundred seventeen thousand, one hundred twenty".