1378142156154 has 8 divisors (see below), whose sum is σ = 2756284312320. Its totient is φ = 459380718716.

The previous prime is 1378142156093. The next prime is 1378142156173. The reversal of 1378142156154 is 4516512418731.

It is a sphenic number, since it is the product of 3 distinct primes.

1378142156154 is an admirable number.

It is a super-2 number, since 2×1378142156154² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114845179674 + ... + 114845179685.

It is an arithmetic number, because the mean of its divisors is an integer number (344535539040).

Almost surely, 2^{1378142156154} is an apocalyptic number.

1378142156154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1378142156154 is a wasteful number, since it uses less digits than its factorization.

1378142156154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229690359364.

The product of its digits is 806400, while the sum is 48.

The spelling of 1378142156154 in words is "one trillion, three hundred seventy-eight billion, one hundred forty-two million, one hundred fifty-six thousand, one hundred fifty-four".