47631753509 has 2 divisors, whose sum is σ = 47631753510. Its totient is φ = 47631753508.

The previous prime is 47631753503. The next prime is 47631753517. The reversal of 47631753509 is 90535713674.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47296680484 + 335073025 = 217478^2 + 18305^2 .

It is a cyclic number.

It is not a de Polignac number, because 47631753509 - 2¹² = 47631749413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47631753503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23815876754 + 23815876755.

It is an arithmetic number, because the mean of its divisors is an integer number (23815876755).

Almost surely, 2^47631753509 is an apocalyptic number.

It is an amenable number.

47631753509 is a deficient number, since it is larger than the sum of its proper divisors (1).

47631753509 is an equidigital number, since it uses as much as digits as its factorization.

47631753509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2381400, while the sum is 50.

The spelling of 47631753509 in words is "forty-seven billion, six hundred thirty-one million, seven hundred fifty-three thousand, five hundred nine".