47672225437 has 4 divisors (see below), whose sum is σ = 47680138620. Its totient is φ = 47664312256.

The previous prime is 47672225431. The next prime is 47672225477. The reversal of 47672225437 is 73452227674.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22182825721 + 25489399716 = 148939^2 + 159654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47672225437 is a prime.

It is a super-2 number, since 2×47672225437² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47672225431) 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, 3947548 + ... + 3959605.

It is an arithmetic number, because the mean of its divisors is an integer number (11920034655).

Almost surely, 2^47672225437 is an apocalyptic number.

It is an amenable number.

47672225437 is a deficient number, since it is larger than the sum of its proper divisors (7913183).

47672225437 is an equidigital number, since it uses as much as digits as its factorization.

47672225437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7913182.

The product of its digits is 3951360, while the sum is 49.

The spelling of 47672225437 in words is "forty-seven billion, six hundred seventy-two million, two hundred twenty-five thousand, four hundred thirty-seven".