47161890490 has 48 divisors (see below), whose sum is σ = 100488140424. Its totient is φ = 15830559360.

The previous prime is 47161890487. The next prime is 47161890491. The reversal of 47161890490 is 9409816174.

It can be written as a sum of positive squares in 4 ways, for example, as 24395003721 + 22766886769 = 156189^2 + 150887^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47161890491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1483377 + ... + 1514836.

Almost surely, 2^47161890490 is an apocalyptic number.

47161890490 is an abundant number, since it is smaller than the sum of its proper divisors (53326249934).

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

47161890490 is a wasteful number, since it uses less digits than its factorization.

47161890490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998255 (or 2998244 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 47161890490 in words is "forty-seven billion, one hundred sixty-one million, eight hundred ninety thousand, four hundred ninety".