2774747871 has 48 divisors (see below), whose sum is σ = 4856027904. Its totient is φ = 1490441472.

The previous prime is 2774747867. The next prime is 2774747873. The reversal of 2774747871 is 1787474772.

It is not a de Polignac number, because 2774747871 - 2² = 2774747867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774747873) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1587420 + ... + 1589166.

It is an arithmetic number, because the mean of its divisors is an integer number (101167248).

Almost surely, 2^2774747871 is an apocalyptic number.

2774747871 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2774747871 is a deficient number, since it is larger than the sum of its proper divisors (2081280033).

2774747871 is a wasteful number, since it uses less digits than its factorization.

2774747871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260 (or 3257 counting only the distinct ones).

The product of its digits is 4302592, while the sum is 54.

The square root of 2774747871 is about 52675.8756073404. The cubic root of 2774747871 is about 1405.2098184218.

The spelling of 2774747871 in words is "two billion, seven hundred seventy-four million, seven hundred forty-seven thousand, eight hundred seventy-one".