13692478477 has 2 divisors, whose sum is σ = 13692478478. Its totient is φ = 13692478476.

The previous prime is 13692478391. The next prime is 13692478489. The reversal of 13692478477 is 77487429631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9786353476 + 3906125001 = 98926^2 + 62499^2 .

It is a cyclic number.

It is not a de Polignac number, because 13692478477 - 2²³ = 13684089869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13692478577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6846239238 + 6846239239.

It is an arithmetic number, because the mean of its divisors is an integer number (6846239239).

Almost surely, 2^13692478477 is an apocalyptic number.

It is an amenable number.

13692478477 is a deficient number, since it is larger than the sum of its proper divisors (1).

13692478477 is an equidigital number, since it uses as much as digits as its factorization.

13692478477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14224896, while the sum is 58.

The spelling of 13692478477 in words is "thirteen billion, six hundred ninety-two million, four hundred seventy-eight thousand, four hundred seventy-seven".