2187605416772 has 24 divisors (see below), whose sum is σ = 3923918261760. Its totient is φ = 1066809189600.

The previous prime is 2187605416769. The next prime is 2187605416783. The reversal of 2187605416772 is 2776145067812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40382372 + ... + 40436507.

It is an arithmetic number, because the mean of its divisors is an integer number (163496594240).

Almost surely, 2^{2187605416772} is an apocalyptic number.

It is an amenable number.

2187605416772 is a deficient number, since it is larger than the sum of its proper divisors (1736312844988).

2187605416772 is a wasteful number, since it uses less digits than its factorization.

2187605416772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80819051 (or 80819049 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 2187605416772 in words is "two trillion, one hundred eighty-seven billion, six hundred five million, four hundred sixteen thousand, seven hundred seventy-two".