2185274320488 has 192 divisors, whose sum is σ = 7476629443200. Its totient is φ = 587636743680.

The previous prime is 2185274320469. The next prime is 2185274320501. The reversal of 2185274320488 is 8840234725812.

It is a happy number.

2185274320488 is a `hidden beast` number, since 2 + 1 + 8 + 5 + 274 + 320 + 48 + 8 = 666.

It is a super-3 number, since 3×2185274320488³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5892708 + ... + 6252563.

It is an arithmetic number, because the mean of its divisors is an integer number (38940778350).

Almost surely, 2^{2185274320488} is an apocalyptic number.

2185274320488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2185274320488 is an abundant number, since it is smaller than the sum of its proper divisors (5291355122712).

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

2185274320488 is a wasteful number, since it uses less digits than its factorization.

2185274320488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12145317 (or 12145300 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 54.

The spelling of 2185274320488 in words is "two trillion, one hundred eighty-five billion, two hundred seventy-four million, three hundred twenty thousand, four hundred eighty-eight".