19142092310440 has 128 divisors (see below), whose sum is σ = 47457266411520. Its totient is φ = 6890835712000.

The previous prime is 19142092310381. The next prime is 19142092310441. The reversal of 19142092310440 is 4401329024191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 19142092310393 and 19142092310402.

It is not an unprimeable number, because it can be changed into a prime (19142092310441) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 347359929 + ... + 347415031.

It is an arithmetic number, because the mean of its divisors is an integer number (370759893840).

Almost surely, 2^{19142092310440} is an apocalyptic number.

19142092310440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19142092310440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23728633205760).

19142092310440 is an abundant number, since it is smaller than the sum of its proper divisors (28315174101080).

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

19142092310440 is a wasteful number, since it uses less digits than its factorization.

19142092310440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63043 (or 63039 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 19142092310440 in words is "nineteen trillion, one hundred forty-two billion, ninety-two million, three hundred ten thousand, four hundred forty".