47139696469 has 2 divisors, whose sum is σ = 47139696470. Its totient is φ = 47139696468.

The previous prime is 47139696433. The next prime is 47139696493. The reversal of 47139696469 is 96469693174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46942855569 + 196840900 = 216663^2 + 14030^2 .

It is a cyclic number.

It is not a de Polignac number, because 47139696469 - 2¹⁹ = 47139172181 is a prime.

It is a super-2 number, since 2×47139696469² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47139696469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47139690469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23569848234 + 23569848235.

It is an arithmetic number, because the mean of its divisors is an integer number (23569848235).

Almost surely, 2^47139696469 is an apocalyptic number.

It is an amenable number.

47139696469 is a deficient number, since it is larger than the sum of its proper divisors (1).

47139696469 is an equidigital number, since it uses as much as digits as its factorization.

47139696469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52907904, while the sum is 64.

The spelling of 47139696469 in words is "forty-seven billion, one hundred thirty-nine million, six hundred ninety-six thousand, four hundred sixty-nine".