47269478381 has 2 divisors, whose sum is σ = 47269478382. Its totient is φ = 47269478380.

The previous prime is 47269478369. The next prime is 47269478461. The reversal of 47269478381 is 18387496274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44619802756 + 2649675625 = 211234^2 + 51475^2 .

It is a cyclic number.

It is not a de Polignac number, because 47269478381 - 2⁶ = 47269478317 is a prime.

It is a super-2 number, since 2×47269478381² (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 47269478381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47269478881) 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 as a sum of consecutive naturals, namely, 23634739190 + 23634739191.

It is an arithmetic number, because the mean of its divisors is an integer number (23634739191).

Almost surely, 2^47269478381 is an apocalyptic number.

It is an amenable number.

47269478381 is a deficient number, since it is larger than the sum of its proper divisors (1).

47269478381 is an equidigital number, since it uses as much as digits as its factorization.

47269478381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16257024, while the sum is 59.

The spelling of 47269478381 in words is "forty-seven billion, two hundred sixty-nine million, four hundred seventy-eight thousand, three hundred eighty-one".