47317053640 has 64 divisors (see below), whose sum is σ = 108540000000. Its totient is φ = 18559257600.

The previous prime is 47317053613. The next prime is 47317053733. The reversal of 47317053640 is 4635071374.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 47317053593 and 47317053602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921361 + ... + 971359.

It is an arithmetic number, because the mean of its divisors is an integer number (1695937500).

Almost surely, 2^47317053640 is an apocalyptic number.

47317053640 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 47317053640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54270000000).

47317053640 is an abundant number, since it is smaller than the sum of its proper divisors (61222946360).

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

47317053640 is a wasteful number, since it uses less digits than its factorization.

47317053640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50470 (or 50466 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 47317053640 in words is "forty-seven billion, three hundred seventeen million, fifty-three thousand, six hundred forty".