1387438812201 has 64 divisors (see below), whose sum is σ = 2131798394880. Its totient is φ = 795586821120.

The previous prime is 1387438812167. The next prime is 1387438812211. The reversal of 1387438812201 is 1022188347831.

It is not a de Polignac number, because 1387438812201 - 2³⁷ = 1249999858729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1387438812211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10905780 + ... + 11032266.

It is an arithmetic number, because the mean of its divisors is an integer number (33309349920).

Almost surely, 2^{1387438812201} is an apocalyptic number.

It is an amenable number.

1387438812201 is a deficient number, since it is larger than the sum of its proper divisors (744359582679).

1387438812201 is a wasteful number, since it uses less digits than its factorization.

1387438812201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126766.

The product of its (nonzero) digits is 516096, while the sum is 48.

The spelling of 1387438812201 in words is "one trillion, three hundred eighty-seven billion, four hundred thirty-eight million, eight hundred twelve thousand, two hundred one".