1386216020780 has 24 divisors (see below), whose sum is σ = 2965979186352. Its totient is φ = 544024400192.

The previous prime is 1386216020747. The next prime is 1386216020851. The reversal of 1386216020780 is 870206126831.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 653874422 + ... + 653876541.

It is an arithmetic number, because the mean of its divisors is an integer number (123582466098).

Almost surely, 2^{1386216020780} is an apocalyptic number.

1386216020780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386216020780 is an abundant number, since it is smaller than the sum of its proper divisors (1579763165572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1386216020780 is a wasteful number, since it uses less digits than its factorization.

1386216020780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307751025 (or 1307751023 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 1386216020780 in words is "one trillion, three hundred eighty-six billion, two hundred sixteen million, twenty thousand, seven hundred eighty".