13778710801 has 2 divisors, whose sum is σ = 13778710802. Its totient is φ = 13778710800.

The previous prime is 13778710727. The next prime is 13778710823. The reversal of 13778710801 is 10801787731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7499733201 + 6278977600 = 86601^2 + 79240^2 .

It is a cyclic number.

It is not a de Polignac number, because 13778710801 - 2²⁹ = 13241839889 is a prime.

It is not a weakly prime, because it can be changed into another prime (13778711801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6889355400 + 6889355401.

It is an arithmetic number, because the mean of its divisors is an integer number (6889355401).

Almost surely, 2^13778710801 is an apocalyptic number.

It is an amenable number.

13778710801 is a deficient number, since it is larger than the sum of its proper divisors (1).

13778710801 is an equidigital number, since it uses as much as digits as its factorization.

13778710801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 43.

It can be divided in two parts, 1377 and 8710801, that added together give a palindrome (8712178).

The spelling of 13778710801 in words is "thirteen billion, seven hundred seventy-eight million, seven hundred ten thousand, eight hundred one".