10639177447 has 2 divisors, whose sum is σ = 10639177448. Its totient is φ = 10639177446.

The previous prime is 10639177429. The next prime is 10639177517. The reversal of 10639177447 is 74477193601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10639177447 - 2³¹ = 8491693799 is a prime.

It is a super-2 number, since 2×10639177447² (a number of 21 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 10639177447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10634177447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5319588723 + 5319588724.

It is an arithmetic number, because the mean of its divisors is an integer number (5319588724).

Almost surely, 2^10639177447 is an apocalyptic number.

10639177447 is a deficient number, since it is larger than the sum of its proper divisors (1).

10639177447 is an equidigital number, since it uses as much as digits as its factorization.

10639177447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 10639177447 in words is "ten billion, six hundred thirty-nine million, one hundred seventy-seven thousand, four hundred forty-seven".