1373877643989 has 16 divisors (see below), whose sum is σ = 1876626932544. Its totient is φ = 893526038400.

The previous prime is 1373877643979. The next prime is 1373877643991. The reversal of 1373877643989 is 9893467783731.

It is not a de Polignac number, because 1373877643989 - 2¹⁹ = 1373877119701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1373877643989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373877643909) 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, 1810882 + ... + 2455004.

It is an arithmetic number, because the mean of its divisors is an integer number (117289183284).

Almost surely, 2^{1373877643989} is an apocalyptic number.

It is an amenable number.

1373877643989 is a deficient number, since it is larger than the sum of its proper divisors (502749288555).

1373877643989 is a wasteful number, since it uses less digits than its factorization.

1373877643989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661508.

The product of its digits is 1152216576, while the sum is 75.

The spelling of 1373877643989 in words is "one trillion, three hundred seventy-three billion, eight hundred seventy-seven million, six hundred forty-three thousand, nine hundred eighty-nine".