47272227493 has 2 divisors, whose sum is σ = 47272227494. Its totient is φ = 47272227492.

The previous prime is 47272227481. The next prime is 47272227511. The reversal of 47272227493 is 39472227274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45992233764 + 1279993729 = 214458^2 + 35777^2 .

It is a cyclic number.

It is not a de Polignac number, because 47272227493 - 2²⁹ = 46735356581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47272227433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23636113746 + 23636113747.

It is an arithmetic number, because the mean of its divisors is an integer number (23636113747).

Almost surely, 2^47272227493 is an apocalyptic number.

It is an amenable number.

47272227493 is a deficient number, since it is larger than the sum of its proper divisors (1).

47272227493 is an equidigital number, since it uses as much as digits as its factorization.

47272227493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 49.

The spelling of 47272227493 in words is "forty-seven billion, two hundred seventy-two million, two hundred twenty-seven thousand, four hundred ninety-three".