2742878775 has 48 divisors (see below), whose sum is σ = 5581420544. Its totient is φ = 1157431680.

The previous prime is 2742878759. The next prime is 2742878813. The reversal of 2742878775 is 5778782472.

2742878775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2742878775 - 2⁴ = 2742878759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 194119 + ... + 207768.

Almost surely, 2^2742878775 is an apocalyptic number.

2742878775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2742878775 is an abundant number, since it is smaller than the sum of its proper divisors (2838541769).

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

2742878775 is a wasteful number, since it uses less digits than its factorization.

2742878775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401920 (or 401915 counting only the distinct ones).

The product of its digits is 12293120, while the sum is 57.

The square root of 2742878775 is about 52372.5001790062. The cubic root of 2742878775 is about 1399.8092894984.

It can be divided in two parts, 2742878 and 775, that added together give a triangular number (2743653 = T₂₃₄₂).

The spelling of 2742878775 in words is "two billion, seven hundred forty-two million, eight hundred seventy-eight thousand, seven hundred seventy-five".