5381377862657 has 4 divisors (see below), whose sum is σ = 5404473905220. Its totient is φ = 5358281820096.

The previous prime is 5381377862611. The next prime is 5381377862689. The reversal of 5381377862657 is 7562687731835.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3581162620816 + 1800215241841 = 1892396^2 + 1341721^2 .

It is a cyclic number.

It is not a de Polignac number, because 5381377862657 - 2¹² = 5381377858561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5381377802657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11548020932 + ... + 11548021397.

It is an arithmetic number, because the mean of its divisors is an integer number (1351118476305).

Almost surely, 2^{5381377862657} is an apocalyptic number.

It is an amenable number.

5381377862657 is a deficient number, since it is larger than the sum of its proper divisors (23096042563).

5381377862657 is a wasteful number, since it uses less digits than its factorization.

5381377862657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23096042562.

The product of its digits is 355622400, while the sum is 68.

The spelling of 5381377862657 in words is "five trillion, three hundred eighty-one billion, three hundred seventy-seven million, eight hundred sixty-two thousand, six hundred fifty-seven".