19354268340 has 72 divisors (see below), whose sum is σ = 64045039968. Its totient is φ = 4691943360.

The previous prime is 19354268287. The next prime is 19354268363. The reversal of 19354268340 is 4386245391.

19354268340 is a `hidden beast` number, since 1 + 9 + 3 + 542 + 68 + 3 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 4885462 + ... + 4889421.

It is an arithmetic number, because the mean of its divisors is an integer number (889514444).

Almost surely, 2^19354268340 is an apocalyptic number.

19354268340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19354268340 is an abundant number, since it is smaller than the sum of its proper divisors (44690771628).

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

19354268340 is a wasteful number, since it uses less digits than its factorization.

19354268340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9774909 (or 9774904 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 19354268340 in words is "nineteen billion, three hundred fifty-four million, two hundred sixty-eight thousand, three hundred forty".