47947485490 has 8 divisors (see below), whose sum is σ = 86305473900. Its totient is φ = 19178994192.

The previous prime is 47947485427. The next prime is 47947485493. The reversal of 47947485490 is 9458474974.

It can be written as a sum of positive squares in 2 ways, for example, as 41228896401 + 6718589089 = 203049^2 + 81967^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×47947485490² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47947485493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397374265 + ... + 2397374284.

Almost surely, 2^47947485490 is an apocalyptic number.

47947485490 is a deficient number, since it is larger than the sum of its proper divisors (38357988410).

47947485490 is a wasteful number, since it uses less digits than its factorization.

47947485490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794748556.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 47947485490 in words is "forty-seven billion, nine hundred forty-seven million, four hundred eighty-five thousand, four hundred ninety".