1864689052576 has 144 divisors (see below), whose sum is σ = 4534880043456. Its totient is φ = 752139795456.

The previous prime is 1864689052571. The next prime is 1864689052631. The reversal of 1864689052576 is 6752509864681.

It is not an unprimeable number, because it can be changed into a prime (1864689052571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9041035 + ... + 9244981.

It is an arithmetic number, because the mean of its divisors is an integer number (31492222524).

Almost surely, 2^{1864689052576} is an apocalyptic number.

1864689052576 is a gapful number since it is divisible by the number (16) 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 1864689052576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2267440021728).

1864689052576 is an abundant number, since it is smaller than the sum of its proper divisors (2670190990880).

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

1864689052576 is an frugal number, since it uses more digits than its factorization.

1864689052576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204009 (or 203973 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 67.

The spelling of 1864689052576 in words is "one trillion, eight hundred sixty-four billion, six hundred eighty-nine million, fifty-two thousand, five hundred seventy-six".