47318288640 has 432 divisors, whose sum is σ = 176842366848. Its totient is φ = 10751311872.

The previous prime is 47318288609. The next prime is 47318288657. The reversal of 47318288640 is 4688281374.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36314229 + ... + 36315531.

Almost surely, 2^47318288640 is an apocalyptic number.

47318288640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47318288640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88421183424).

47318288640 is an abundant number, since it is smaller than the sum of its proper divisors (129524078208).

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

47318288640 is a wasteful number, since it uses less digits than its factorization.

47318288640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 47318288640 in words is "forty-seven billion, three hundred eighteen million, two hundred eighty-eight thousand, six hundred forty".