18857465051472 has 400 divisors, whose sum is σ = 56868250824000. Its totient is φ = 6025408155648.

The previous prime is 18857465051437. The next prime is 18857465051473. The reversal of 18857465051472 is 27415056475881.

18857465051472 is a `hidden beast` number, since 1 + 8 + 8 + 5 + 7 + 46 + 5 + 0 + 514 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18857465051473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4971647208 + ... + 4971651000.

It is an arithmetic number, because the mean of its divisors is an integer number (142170627060).

Almost surely, 2^{18857465051472} is an apocalyptic number.

18857465051472 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 18857465051472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28434125412000).

18857465051472 is an abundant number, since it is smaller than the sum of its proper divisors (38010785772528).

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

18857465051472 is a wasteful number, since it uses less digits than its factorization.

18857465051472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4760 (or 4745 counting only the distinct ones).

The product of its (nonzero) digits is 75264000, while the sum is 63.

The spelling of 18857465051472 in words is "eighteen trillion, eight hundred fifty-seven billion, four hundred sixty-five million, fifty-one thousand, four hundred seventy-two".