2642545674 has 32 divisors (see below), whose sum is σ = 5874223680. Its totient is φ = 880563600.

The previous prime is 2642545673. The next prime is 2642545687. The reversal of 2642545674 is 4765452462.

2642545674 is a `hidden beast` number, since 2 + 6 + 42 + 545 + 67 + 4 = 666.

It is a super-2 number, since 2×2642545674² = 13966095278352228552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2642545673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221584 + ... + 233204.

It is an arithmetic number, because the mean of its divisors is an integer number (183569490).

Almost surely, 2^2642545674 is an apocalyptic number.

2642545674 is an abundant number, since it is smaller than the sum of its proper divisors (3231678006).

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

2642545674 is a wasteful number, since it uses less digits than its factorization.

2642545674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15843 (or 15837 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 45.

The square root of 2642545674 is about 51405.6969021917. The cubic root of 2642545674 is about 1382.5287377546.

It can be divided in two parts, 26 and 42545674, that added together give a triangular number (42545700 = T₉₂₂₄).

The spelling of 2642545674 in words is "two billion, six hundred forty-two million, five hundred forty-five thousand, six hundred seventy-four".