2748771831 has 16 divisors (see below), whose sum is σ = 3948054656. Its totient is φ = 1691080416.

The previous prime is 2748771811. The next prime is 2748771877. The reversal of 2748771831 is 1381778472.

It is not a de Polignac number, because 2748771831 - 2⁵ = 2748771799 is a prime.

It is a super-3 number, since 3×2748771831³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748771811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176736 + ... + 191658.

It is an arithmetic number, because the mean of its divisors is an integer number (246753416).

Almost surely, 2^2748771831 is an apocalyptic number.

2748771831 is a deficient number, since it is larger than the sum of its proper divisors (1199282825).

2748771831 is a wasteful number, since it uses less digits than its factorization.

2748771831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19662.

The product of its digits is 526848, while the sum is 48.

The square root of 2748771831 is about 52428.7309688114. The cubic root of 2748771831 is about 1400.8110659165.

The spelling of 2748771831 in words is "two billion, seven hundred forty-eight million, seven hundred seventy-one thousand, eight hundred thirty-one".