19341856140 has 48 divisors (see below), whose sum is σ = 54965524992. Its totient is φ = 5080844736.

The previous prime is 19341856129. The next prime is 19341856169. The reversal of 19341856140 is 4165814391.

It is a junction number, because it is equal to n+sod(n) for n = 19341856092 and 19341856101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2401684 + ... + 2409723.

It is an arithmetic number, because the mean of its divisors is an integer number (1145115104).

Almost surely, 2^19341856140 is an apocalyptic number.

19341856140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19341856140 is an abundant number, since it is smaller than the sum of its proper divisors (35623668852).

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

19341856140 is a wasteful number, since it uses less digits than its factorization.

19341856140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811486 (or 4811484 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 19341856140 in words is "nineteen billion, three hundred forty-one million, eight hundred fifty-six thousand, one hundred forty".