1369437727920 has 80 divisors (see below), whose sum is σ = 4284204349920. Its totient is φ = 361833080832.

The previous prime is 1369437727909. The next prime is 1369437727921. The reversal of 1369437727920 is 297277349631.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (1369437727921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26148109 + ... + 26200428.

It is an arithmetic number, because the mean of its divisors is an integer number (53552554374).

Almost surely, 2^{1369437727920} is an apocalyptic number.

1369437727920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1369437727920 is an abundant number, since it is smaller than the sum of its proper divisors (2914766622000).

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

1369437727920 is a wasteful number, since it uses less digits than its factorization.

1369437727920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52348662 (or 52348656 counting only the distinct ones).

The product of its (nonzero) digits is 24004512, while the sum is 60.

The spelling of 1369437727920 in words is "one trillion, three hundred sixty-nine billion, four hundred thirty-seven million, seven hundred twenty-seven thousand, nine hundred twenty".