47028566281 has 4 divisors (see below), whose sum is σ = 49503754000. Its totient is φ = 44553378564.

The previous prime is 47028566261. The next prime is 47028566303. The reversal of 47028566281 is 18266582074.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47028566281 - 2³³ = 38438631689 is a prime.

It is a super-2 number, since 2×47028566281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47028566261) 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, 1237593831 + ... + 1237593868.

It is an arithmetic number, because the mean of its divisors is an integer number (12375938500).

Almost surely, 2^47028566281 is an apocalyptic number.

It is an amenable number.

47028566281 is a deficient number, since it is larger than the sum of its proper divisors (2475187719).

47028566281 is a wasteful number, since it uses less digits than its factorization.

47028566281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2475187718.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 47028566281 in words is "forty-seven billion, twenty-eight million, five hundred sixty-six thousand, two hundred eighty-one".