13550177387 has 2 divisors, whose sum is σ = 13550177388. Its totient is φ = 13550177386.

The previous prime is 13550177339. The next prime is 13550177393. The reversal of 13550177387 is 78377105531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13550177387 - 2²² = 13545983083 is a prime.

It is a super-2 number, since 2×13550177387² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13550177087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775088693 + 6775088694.

It is an arithmetic number, because the mean of its divisors is an integer number (6775088694).

Almost surely, 2^13550177387 is an apocalyptic number.

13550177387 is a deficient number, since it is larger than the sum of its proper divisors (1).

13550177387 is an equidigital number, since it uses as much as digits as its factorization.

13550177387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 13550177387 in words is "thirteen billion, five hundred fifty million, one hundred seventy-seven thousand, three hundred eighty-seven".