2542867161769 has 9 divisors (see below), whose sum is σ = 2795071615581. Its totient is φ = 2311681473420.

The previous prime is 2542867161739. The next prime is 2542867161773. The reversal of 2542867161769 is 9671617682452.

The square root of 2542867161769 is 1594637.

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

It is not a de Polignac number, because 2542867161769 - 2⁹ = 2542867161257 is a prime.

It is a super-2 number, since 2×2542867161769² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2542867161769.

It is not an unprimeable number, because it can be changed into a prime (2542867161739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17468524 + ... + 17613490.

Almost surely, 2^{2542867161769} is an apocalyptic number.

2542867161769 is the 1594637-th square number.

2542867161769 is the 797319-th centered octagonal number.

It is an amenable number.

2542867161769 is a deficient number, since it is larger than the sum of its proper divisors (252204453812).

2542867161769 is an frugal number, since it uses more digits than its factorization.

2542867161769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289956 (or 144978 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 64.

Multiplying 2542867161769 by its sum of digits (64), we get a square (162743498353216 = 12757096²).

The spelling of 2542867161769 in words is "two trillion, five hundred forty-two billion, eight hundred sixty-seven million, one hundred sixty-one thousand, seven hundred sixty-nine".