2721362427 has 40 divisors (see below), whose sum is σ = 4650237152. Its totient is φ = 1553644800.

The previous prime is 2721362393. The next prime is 2721362447. The reversal of 2721362427 is 7242631272.

It is a happy number.

2721362427 is a `hidden beast` number, since 2 + 7 + 2 + 1 + 3 + 624 + 27 = 666.

It is not a de Polignac number, because 2721362427 - 2¹¹ = 2721360379 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2721362391 and 2721362400.

It is not an unprimeable number, because it can be changed into a prime (2721362447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1224177 + ... + 1226397.

Almost surely, 2^2721362427 is an apocalyptic number.

2721362427 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2721362427 is a deficient number, since it is larger than the sum of its proper divisors (1928874725).

2721362427 is a wasteful number, since it uses less digits than its factorization.

2721362427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401 (or 4392 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 2721362427 is about 52166.6792790187. The cubic root of 2721362427 is about 1396.1394367267.

Adding to 2721362427 its reverse (7242631272), we get a palindrome (9963993699).

The spelling of 2721362427 in words is "two billion, seven hundred twenty-one million, three hundred sixty-two thousand, four hundred twenty-seven".