2887854998161 has 45 divisors (see below), whose sum is σ = 3419938877481. Its totient is φ = 2438404185672.

The previous prime is 2887854998159. The next prime is 2887854998167. The reversal of 2887854998161 is 1618994587882.

The square root of 2887854998161 is 1699369.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 2887854998161 - 2¹ = 2887854998159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2887854998167) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 6578257180 + ... + 6578257618.

Almost surely, 2^{2887854998161} is an apocalyptic number.

2887854998161 is the 1699369-th square number.

2887854998161 is the 849685-th centered octagonal number.

It is an amenable number.

2887854998161 is a deficient number, since it is larger than the sum of its proper divisors (532083879320).

2887854998161 is an frugal number, since it uses more digits than its factorization.

2887854998161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 525 counting only the distinct ones).

The product of its digits is 557383680, while the sum is 76.

The spelling of 2887854998161 in words is "two trillion, eight hundred eighty-seven billion, eight hundred fifty-four million, nine hundred ninety-eight thousand, one hundred sixty-one".