18250157653 has 48 divisors (see below), whose sum is σ = 24150314496. Its totient is φ = 13648279680.

The previous prime is 18250157561. The next prime is 18250157657. The reversal of 18250157653 is 35675105281.

It is a happy number.

It is not a de Polignac number, because 18250157653 - 2¹⁷ = 18250026581 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18250157657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 838375 + ... + 859867.

It is an arithmetic number, because the mean of its divisors is an integer number (503131552).

Almost surely, 2^18250157653 is an apocalyptic number.

18250157653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18250157653 is a deficient number, since it is larger than the sum of its proper divisors (5900156843).

18250157653 is a wasteful number, since it uses less digits than its factorization.

18250157653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21594 (or 21587 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 18250157653 in words is "eighteen billion, two hundred fifty million, one hundred fifty-seven thousand, six hundred fifty-three".