1379854738944 has 320 divisors, whose sum is σ = 4465097429760. Its totient is φ = 417263616000.

The previous prime is 1379854738931. The next prime is 1379854738967. The reversal of 1379854738944 is 4498374589731.

1379854738944 is a `hidden beast` number, since 1 + 3 + 7 + 9 + 8 + 547 + 38 + 9 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74654184 + ... + 74672664.

It is an arithmetic number, because the mean of its divisors is an integer number (13953429468).

Almost surely, 2^{1379854738944} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1379854738944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2232548714880).

1379854738944 is an abundant number, since it is smaller than the sum of its proper divisors (3085242690816).

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

1379854738944 is a wasteful number, since it uses less digits than its factorization.

1379854738944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19010 (or 18988 counting only the distinct ones).

The product of its digits is 731566080, while the sum is 72.

The spelling of 1379854738944 in words is "one trillion, three hundred seventy-nine billion, eight hundred fifty-four million, seven hundred thirty-eight thousand, nine hundred forty-four".