47122267637 has 4 divisors (see below), whose sum is σ = 48395842476. Its totient is φ = 45848692800.

The previous prime is 47122267607. The next prime is 47122267657. The reversal of 47122267637 is 73676222174.

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 43603286596 + 3518981041 = 208814^2 + 59321^2 .

It is a cyclic number.

It is not a de Polignac number, because 47122267637 - 2⁶ = 47122267573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47122267591 and 47122267600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47122267607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636787364 + ... + 636787437.

It is an arithmetic number, because the mean of its divisors is an integer number (12098960619).

Almost surely, 2^47122267637 is an apocalyptic number.

It is an amenable number.

47122267637 is a deficient number, since it is larger than the sum of its proper divisors (1273574839).

47122267637 is a wasteful number, since it uses less digits than its factorization.

47122267637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273574838.

The product of its digits is 1185408, while the sum is 47.

The spelling of 47122267637 in words is "forty-seven billion, one hundred twenty-two million, two hundred sixty-seven thousand, six hundred thirty-seven".