1378894541000 has 32 divisors (see below), whose sum is σ = 3226613228280. Its totient is φ = 551557816000.

The previous prime is 1378894540957. The next prime is 1378894541027. The reversal of 1378894541000 is 1454988731.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 144231329284 + 1234663211716 = 379778^2 + 1111154^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 1378894541000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689446271 + ... + 689448270.

Almost surely, 2^{1378894541000} is an apocalyptic number.

1378894541000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378894541000 is an abundant number, since it is smaller than the sum of its proper divisors (1847718687280).

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

1378894541000 is a wasteful number, since it uses less digits than its factorization.

1378894541000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378894562 (or 1378894548 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 1378894541000 in words is "one trillion, three hundred seventy-eight billion, eight hundred ninety-four million, five hundred forty-one thousand".