47720200721291 has 4 divisors (see below), whose sum is σ = 54537372252912. Its totient is φ = 40903029189672.

The previous prime is 47720200721279. The next prime is 47720200721317. The reversal of 47720200721291 is 19212700202774.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47720200721291 - 2²² = 47720196526987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47720200721891) 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, 3408585765800 + ... + 3408585765813.

It is an arithmetic number, because the mean of its divisors is an integer number (13634343063228).

Almost surely, 2^{47720200721291} is an apocalyptic number.

47720200721291 is a deficient number, since it is larger than the sum of its proper divisors (6817171531621).

47720200721291 is an equidigital number, since it uses as much as digits as its factorization.

47720200721291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6817171531620.

The product of its (nonzero) digits is 197568, while the sum is 44.

The spelling of 47720200721291 in words is "forty-seven trillion, seven hundred twenty billion, two hundred million, seven hundred twenty-one thousand, two hundred ninety-one".