18372430487040 has 3200 divisors, whose sum is σ = 78430982952960. Its totient is φ = 3648047284224.

The previous prime is 18372430487009. The next prime is 18372430487107. The reversal of 18372430487040 is 4078403427381.

It is a super-2 number, since 2×18372430487040² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 390902776297 + ... + 390902776343.

Almost surely, 2^{18372430487040} is an apocalyptic number.

18372430487040 is a gapful number since it is divisible by the number (10) 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 18372430487040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39215491476480).

18372430487040 is an abundant number, since it is smaller than the sum of its proper divisors (60058552465920).

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

18372430487040 is an equidigital number, since it uses as much as digits as its factorization.

18372430487040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 51.

The spelling of 18372430487040 in words is "eighteen trillion, three hundred seventy-two billion, four hundred thirty million, four hundred eighty-seven thousand, forty".