19123740363 has 64 divisors (see below), whose sum is σ = 31672202240. Its totient is φ = 10054077696.

The previous prime is 19123740329. The next prime is 19123740373. The reversal of 19123740363 is 36304732191.

It is not a de Polignac number, because 19123740363 - 2¹² = 19123736267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (19123740313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21084156 + ... + 21085062.

It is an arithmetic number, because the mean of its divisors is an integer number (494878160).

Almost surely, 2^19123740363 is an apocalyptic number.

19123740363 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19123740363 is a deficient number, since it is larger than the sum of its proper divisors (12548461877).

19123740363 is an equidigital number, since it uses as much as digits as its factorization.

19123740363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The spelling of 19123740363 in words is "nineteen billion, one hundred twenty-three million, seven hundred forty thousand, three hundred sixty-three".