1387260006881 has 8 divisors (see below), whose sum is σ = 1585455552000. Its totient is φ = 1189068347808.

The previous prime is 1387260006857. The next prime is 1387260006911. The reversal of 1387260006881 is 1886000627831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1387260006881 - 2¹⁸ = 1387259744737 is a prime.

It is a super-2 number, since 2×1387260006881² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387260000881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161516 + ... + 1673501.

It is an arithmetic number, because the mean of its divisors is an integer number (198181944000).

Almost surely, 2^{1387260006881} is an apocalyptic number.

It is an amenable number.

1387260006881 is a deficient number, since it is larger than the sum of its proper divisors (198195545119).

1387260006881 is a wasteful number, since it uses less digits than its factorization.

1387260006881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943023.

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 1387260006881 in words is "one trillion, three hundred eighty-seven billion, two hundred sixty million, six thousand, eight hundred eighty-one".