47456728792 has 64 divisors (see below), whose sum is σ = 102355747200. Its totient is φ = 20400675840.

The previous prime is 47456728771. The next prime is 47456728807. The reversal of 47456728792 is 29782765474.

It is a super-2 number, since 2×47456728792² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (61) 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 47456728792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 957288 + ... + 1005640.

It is an arithmetic number, because the mean of its divisors is an integer number (1599308550).

Almost surely, 2^47456728792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47456728792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51177873600).

47456728792 is an abundant number, since it is smaller than the sum of its proper divisors (54899018408).

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

47456728792 is a wasteful number, since it uses less digits than its factorization.

47456728792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48976 (or 48972 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 61.

The spelling of 47456728792 in words is "forty-seven billion, four hundred fifty-six million, seven hundred twenty-eight thousand, seven hundred ninety-two".