2172582840684 has 24 divisors (see below), whose sum is σ = 5289766917120. Its totient is φ = 692707572304.

The previous prime is 2172582840619. The next prime is 2172582840689. The reversal of 2172582840684 is 4860482852712.

It is not an unprimeable number, because it can be changed into a prime (2172582840689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3935838204 + ... + 3935838755.

It is an arithmetic number, because the mean of its divisors is an integer number (220406954880).

Almost surely, 2^{2172582840684} is an apocalyptic number.

It is an amenable number.

2172582840684 is an abundant number, since it is smaller than the sum of its proper divisors (3117184076436).

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

2172582840684 is a wasteful number, since it uses less digits than its factorization.

2172582840684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7871676989 (or 7871676987 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 57.

The spelling of 2172582840684 in words is "two trillion, one hundred seventy-two billion, five hundred eighty-two million, eight hundred forty thousand, six hundred eighty-four".