1378534223400 has 48 divisors (see below), whose sum is σ = 4273456094400. Its totient is φ = 367609126080.

The previous prime is 1378534223369. The next prime is 1378534223401. The reversal of 1378534223400 is 43224358731.

It is a super-2 number, since 2×1378534223400² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1378534223401) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1148777920 + ... + 1148779119.

It is an arithmetic number, because the mean of its divisors is an integer number (89030335300).

Almost surely, 2^{1378534223400} is an apocalyptic number.

1378534223400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378534223400 is an abundant number, since it is smaller than the sum of its proper divisors (2894921871000).

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

1378534223400 is a wasteful number, since it uses less digits than its factorization.

1378534223400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2297557058 (or 2297557049 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 1378534223400 in words is "one trillion, three hundred seventy-eight billion, five hundred thirty-four million, two hundred twenty-three thousand, four hundred".