18232401649770 has 576 divisors, whose sum is σ = 62915956346880. Its totient is φ = 3575832480000.

The previous prime is 18232401649753. The next prime is 18232401649771. The reversal of 18232401649770 is 7794610423281.

18232401649770 is a `hidden beast` number, since 1 + 8 + 2 + 32 + 40 + 16 + 497 + 70 = 666.

It is not an unprimeable number, because it can be changed into a prime (18232401649771) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 392485045 + ... + 392531495.

It is an arithmetic number, because the mean of its divisors is an integer number (109229090880).

Almost surely, 2^{18232401649770} is an apocalyptic number.

18232401649770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18232401649770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31457978173440).

18232401649770 is an abundant number, since it is smaller than the sum of its proper divisors (44683554697110).

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

18232401649770 is a wasteful number, since it uses less digits than its factorization.

18232401649770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46783 (or 46769 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 18232401649770 in words is "eighteen trillion, two hundred thirty-two billion, four hundred one million, six hundred forty-nine thousand, seven hundred seventy".