13545557624077 has 2 divisors, whose sum is σ = 13545557624078. Its totient is φ = 13545557624076.

The previous prime is 13545557624029. The next prime is 13545557624107. The reversal of 13545557624077 is 77042675554531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13545557624041 + 36 = 3680429^2 + 6^2 .

It is a cyclic number.

It is not a de Polignac number, because 13545557624077 - 2²⁷ = 13545423406349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13545557924077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6772778812038 + 6772778812039.

It is an arithmetic number, because the mean of its divisors is an integer number (6772778812039).

Almost surely, 2^{13545557624077} is an apocalyptic number.

It is an amenable number.

13545557624077 is a deficient number, since it is larger than the sum of its proper divisors (1).

13545557624077 is an equidigital number, since it uses as much as digits as its factorization.

13545557624077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480000, while the sum is 61.

The spelling of 13545557624077 in words is "thirteen trillion, five hundred forty-five billion, five hundred fifty-seven million, six hundred twenty-four thousand, seventy-seven".