18746007552 has 392 divisors, whose sum is σ = 58303951464. Its totient is φ = 6019743744.

The previous prime is 18746007541. The next prime is 18746007571. The reversal of 18746007552 is 25570064781.

18746007552 is a `hidden beast` number, since 187 + 460 + 0 + 7 + 5 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 18746007498 and 18746007507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 256794588 + ... + 256794660.

Almost surely, 2^18746007552 is an apocalyptic number.

18746007552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18746007552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29151975732).

18746007552 is an abundant number, since it is smaller than the sum of its proper divisors (39557943912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18746007552 is an frugal number, since it uses more digits than its factorization.

18746007552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 18746007552 in words is "eighteen billion, seven hundred forty-six million, seven thousand, five hundred fifty-two".