2751779438 has 4 divisors (see below), whose sum is σ = 4127669160. Its totient is φ = 1375889718.

The previous prime is 2751779431. The next prime is 2751779473. The reversal of 2751779438 is 8349771572.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2751779438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2751779431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687944858 + ... + 687944861.

It is an arithmetic number, because the mean of its divisors is an integer number (1031917290).

Almost surely, 2^2751779438 is an apocalyptic number.

2751779438 is a deficient number, since it is larger than the sum of its proper divisors (1375889722).

2751779438 is a wasteful number, since it uses less digits than its factorization.

2751779438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375889721.

The product of its digits is 2963520, while the sum is 53.

The square root of 2751779438 is about 52457.4059404390. The cubic root of 2751779438 is about 1401.3217853404.

The spelling of 2751779438 in words is "two billion, seven hundred fifty-one million, seven hundred seventy-nine thousand, four hundred thirty-eight".