47365111921 has 8 divisors (see below), whose sum is σ = 48262058280. Its totient is φ = 46468286592.

The previous prime is 47365111919. The next prime is 47365111949. The reversal of 47365111921 is 12911156374.

It can be written as a sum of positive squares in 4 ways, for example, as 345960000 + 47019151921 = 18600^2 + 216839^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 47365111921 - 2¹ = 47365111919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47365111991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346485 + ... + 1381213.

It is an arithmetic number, because the mean of its divisors is an integer number (6032757285).

Almost surely, 2^47365111921 is an apocalyptic number.

It is an amenable number.

47365111921 is a deficient number, since it is larger than the sum of its proper divisors (896946359).

47365111921 is a wasteful number, since it uses less digits than its factorization.

47365111921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60515.

The product of its digits is 45360, while the sum is 40.

The spelling of 47365111921 in words is "forty-seven billion, three hundred sixty-five million, one hundred eleven thousand, nine hundred twenty-one".