18497552445 has 24 divisors (see below), whose sum is σ = 33249923616. Its totient is φ = 9865360656.

The previous prime is 18497552443. The next prime is 18497552459. The reversal of 18497552445 is 54425579481.

18497552445 is a `hidden beast` number, since 1 + 8 + 4 + 9 + 75 + 524 + 45 = 666.

It is not a de Polignac number, because 18497552445 - 2¹ = 18497552443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18497552391 and 18497552400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18497552443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7610947 + ... + 7613376.

It is an arithmetic number, because the mean of its divisors is an integer number (1385413484).

Almost surely, 2^18497552445 is an apocalyptic number.

18497552445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18497552445 is a deficient number, since it is larger than the sum of its proper divisors (14752371171).

18497552445 is an equidigital number, since it uses as much as digits as its factorization.

18497552445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15224343 (or 15224331 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

The spelling of 18497552445 in words is "eighteen billion, four hundred ninety-seven million, five hundred fifty-two thousand, four hundred forty-five".