19748241253 has 16 divisors (see below), whose sum is σ = 21586594176. Its totient is φ = 17955967680.

The previous prime is 19748241229. The next prime is 19748241257. The reversal of 19748241253 is 35214284791.

It is a cyclic number.

It is not a de Polignac number, because 19748241253 - 2⁵ = 19748241221 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 (19748241257) 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, 1064251 + ... + 1082647.

It is an arithmetic number, because the mean of its divisors is an integer number (1349162136).

Almost surely, 2^19748241253 is an apocalyptic number.

19748241253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19748241253 is a deficient number, since it is larger than the sum of its proper divisors (1838352923).

19748241253 is a wasteful number, since it uses less digits than its factorization.

19748241253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19644.

The product of its digits is 483840, while the sum is 46.

The spelling of 19748241253 in words is "nineteen billion, seven hundred forty-eight million, two hundred forty-one thousand, two hundred fifty-three".