19642404502014 has 256 divisors, whose sum is σ = 48993011730432. Its totient is φ = 5122215641088.

The previous prime is 19642404501947. The next prime is 19642404502079. The reversal of 19642404502014 is 41020540424691.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2501257312 + ... + 2501265164.

It is an arithmetic number, because the mean of its divisors is an integer number (191378952072).

Almost surely, 2^{19642404502014} is an apocalyptic number.

19642404502014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19642404502014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24496505865216).

19642404502014 is an abundant number, since it is smaller than the sum of its proper divisors (29350607228418).

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

19642404502014 is a wasteful number, since it uses less digits than its factorization.

19642404502014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8499.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 19642404502014 in words is "nineteen trillion, six hundred forty-two billion, four hundred four million, five hundred two thousand, fourteen".