13677534421 has 2 divisors, whose sum is σ = 13677534422. Its totient is φ = 13677534420.

The previous prime is 13677534401. The next prime is 13677534443. The reversal of 13677534421 is 12443577631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12676508100 + 1001026321 = 112590^2 + 31639^2 .

It is a cyclic number.

It is not a de Polignac number, because 13677534421 - 2¹¹ = 13677532373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13677534401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6838767210 + 6838767211.

It is an arithmetic number, because the mean of its divisors is an integer number (6838767211).

Almost surely, 2^13677534421 is an apocalyptic number.

It is an amenable number.

13677534421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13677534421 is an equidigital number, since it uses as much as digits as its factorization.

13677534421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 43.

The spelling of 13677534421 in words is "thirteen billion, six hundred seventy-seven million, five hundred thirty-four thousand, four hundred twenty-one".