18025378470 has 384 divisors, whose sum is σ = 56536704000. Its totient is φ = 4071513600.

The previous prime is 18025378463. The next prime is 18025378519. The reversal of 18025378470 is 7487352081.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 44071626 + ... + 44072034.

It is an arithmetic number, because the mean of its divisors is an integer number (147231000).

Almost surely, 2^18025378470 is an apocalyptic number.

18025378470 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 18025378470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28268352000).

18025378470 is an abundant number, since it is smaller than the sum of its proper divisors (38511325530).

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

18025378470 is a wasteful number, since it uses less digits than its factorization.

18025378470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

It can be divided in two parts, 18025 and 378470, that added together give a triangular number (396495 = T₈₉₀).

The spelling of 18025378470 in words is "eighteen billion, twenty-five million, three hundred seventy-eight thousand, four hundred seventy".