18714520253 has 16 divisors (see below), whose sum is σ = 21992052096. Its totient is φ = 15700376640.

The previous prime is 18714520249. The next prime is 18714520259. The reversal of 18714520253 is 35202541781.

It is not a de Polignac number, because 18714520253 - 2² = 18714520249 is a prime.

It is a super-3 number, since 3×18714520253³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18714520259) 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, 610376 + ... + 640302.

It is an arithmetic number, because the mean of its divisors is an integer number (1374503256).

Almost surely, 2^18714520253 is an apocalyptic number.

18714520253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18714520253 is a deficient number, since it is larger than the sum of its proper divisors (3277531843).

18714520253 is a wasteful number, since it uses less digits than its factorization.

18714520253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34324.

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 18714520253 in words is "eighteen billion, seven hundred fourteen million, five hundred twenty thousand, two hundred fifty-three".