19261044023 has 16 divisors (see below), whose sum is σ = 21063331296. Its totient is φ = 17504847360.

The previous prime is 19261043987. The next prime is 19261044037. The reversal of 19261044023 is 32044016291.

It is not a de Polignac number, because 19261044023 - 2¹² = 19261039927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19261044043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2079683 + ... + 2088923.

It is an arithmetic number, because the mean of its divisors is an integer number (1316458206).

Almost surely, 2^19261044023 is an apocalyptic number.

19261044023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

19261044023 is a deficient number, since it is larger than the sum of its proper divisors (1802287273).

19261044023 is a wasteful number, since it uses less digits than its factorization.

19261044023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11714.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 19261044023 in words is "nineteen billion, two hundred sixty-one million, forty-four thousand, twenty-three".