19158353340 has 48 divisors (see below), whose sum is σ = 61306732032. Its totient is φ = 4379052096.

The previous prime is 19158353339. The next prime is 19158353341. The reversal of 19158353340 is 4335385191.

It is an interprime number because it is at equal distance from previous prime (19158353339) and next prime (19158353341).

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

It is a junction number, because it is equal to n+sod(n) for n = 19158353292 and 19158353301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19158353341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22807144 + ... + 22807983.

It is an arithmetic number, because the mean of its divisors is an integer number (1277223584).

Almost surely, 2^19158353340 is an apocalyptic number.

19158353340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19158353340 is an abundant number, since it is smaller than the sum of its proper divisors (42148378692).

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

19158353340 is a wasteful number, since it uses less digits than its factorization.

19158353340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45615146 (or 45615144 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 19158353340 in words is "nineteen billion, one hundred fifty-eight million, three hundred fifty-three thousand, three hundred forty".