19326064340 has 72 divisors (see below), whose sum is σ = 44768885280. Its totient is φ = 7002578880.

The previous prime is 19326064337. The next prime is 19326064363. The reversal of 19326064340 is 4346062391.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19326064294 and 19326064303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670751 + ... + 698969.

Almost surely, 2^19326064340 is an apocalyptic number.

19326064340 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 19326064340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22384442640).

19326064340 is an abundant number, since it is smaller than the sum of its proper divisors (25442820940).

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

19326064340 is a wasteful number, since it uses less digits than its factorization.

19326064340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28533 (or 28520 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 19326064340 in words is "nineteen billion, three hundred twenty-six million, sixty-four thousand, three hundred forty".