47900160021 has 32 divisors (see below), whose sum is σ = 74261099520. Its totient is φ = 26895544704.

The previous prime is 47900160013. The next prime is 47900160023. The reversal of 47900160021 is 12006100974.

It is a happy number.

It is not a de Polignac number, because 47900160021 - 2³ = 47900160013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47900160023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3254946 + ... + 3269628.

It is an arithmetic number, because the mean of its divisors is an integer number (2320659360).

Almost surely, 2^47900160021 is an apocalyptic number.

It is an amenable number.

47900160021 is a deficient number, since it is larger than the sum of its proper divisors (26360939499).

47900160021 is a wasteful number, since it uses less digits than its factorization.

47900160021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17385.

The product of its (nonzero) digits is 3024, while the sum is 30.

Adding to 47900160021 its reverse (12006100974), we get a palindrome (59906260995).

The spelling of 47900160021 in words is "forty-seven billion, nine hundred million, one hundred sixty thousand, twenty-one".