2774421631 has 4 divisors (see below), whose sum is σ = 2813498064. Its totient is φ = 2735345200.

The previous prime is 2774421623. The next prime is 2774421647. The reversal of 2774421631 is 1361244772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2774421631 - 2³ = 2774421623 is a prime.

It is a super-2 number, since 2×2774421631² = 15394830773121400322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774421031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19538110 + ... + 19538251.

It is an arithmetic number, because the mean of its divisors is an integer number (703374516).

Almost surely, 2^2774421631 is an apocalyptic number.

2774421631 is a deficient number, since it is larger than the sum of its proper divisors (39076433).

2774421631 is an equidigital number, since it uses as much as digits as its factorization.

2774421631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39076432.

The product of its digits is 56448, while the sum is 37.

The square root of 2774421631 is about 52672.7788425862. The cubic root of 2774421631 is about 1405.1547439141.

The spelling of 2774421631 in words is "two billion, seven hundred seventy-four million, four hundred twenty-one thousand, six hundred thirty-one".