47699312640 has 720 divisors, whose sum is σ = 188803978272. Its totient is φ = 10217324544.

The previous prime is 47699312621. The next prime is 47699312651. The reversal of 47699312640 is 4621399674.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

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, 204717964 + ... + 204718196.

Almost surely, 2^47699312640 is an apocalyptic number.

47699312640 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 47699312640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94401989136).

47699312640 is an abundant number, since it is smaller than the sum of its proper divisors (141104665632).

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

47699312640 is a wasteful number, since it uses less digits than its factorization.

47699312640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 51.

The spelling of 47699312640 in words is "forty-seven billion, six hundred ninety-nine million, three hundred twelve thousand, six hundred forty".