2777042421 has 32 divisors (see below), whose sum is σ = 4189086720. Its totient is φ = 1817862912.

The previous prime is 2777042417. The next prime is 2777042447. The reversal of 2777042421 is 1242407772.

It is a happy number.

It is not a de Polignac number, because 2777042421 - 2² = 2777042417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2777042221) 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 31 ways as a sum of consecutive naturals, for example, 456220 + ... + 462266.

It is an arithmetic number, because the mean of its divisors is an integer number (130908960).

Almost surely, 2^2777042421 is an apocalyptic number.

It is an amenable number.

2777042421 is a deficient number, since it is larger than the sum of its proper divisors (1412044299).

2777042421 is a wasteful number, since it uses less digits than its factorization.

2777042421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6362 (or 6356 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 2777042421 is about 52697.6510007799. The cubic root of 2777042421 is about 1405.5970531032.

The spelling of 2777042421 in words is "two billion, seven hundred seventy-seven million, forty-two thousand, four hundred twenty-one".