4747171902 has 128 divisors (see below), whose sum is σ = 11186615808. Its totient is φ = 1327104000.

The previous prime is 4747171901. The next prime is 4747171903. The reversal of 4747171902 is 2091717474.

It is an interprime number because it is at equal distance from previous prime (4747171901) and next prime (4747171903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4747171901) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18471358 + ... + 18471614.

It is an arithmetic number, because the mean of its divisors is an integer number (87395436).

Almost surely, 2^4747171902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4747171902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5593307904).

4747171902 is an abundant number, since it is smaller than the sum of its proper divisors (6439443906).

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

4747171902 is a wasteful number, since it uses less digits than its factorization.

4747171902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 4747171902 is about 68899.7235262958. The cubic root of 4747171902 is about 1680.6540232755.

The spelling of 4747171902 in words is "four billion, seven hundred forty-seven million, one hundred seventy-one thousand, nine hundred two".