2778536732 has 6 divisors (see below), whose sum is σ = 4862439288. Its totient is φ = 1389268364.

The previous prime is 2778536723. The next prime is 2778536743. The reversal of 2778536732 is 2376358772.

2778536732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347317088 + ... + 347317095.

It is an arithmetic number, because the mean of its divisors is an integer number (810406548).

Almost surely, 2^2778536732 is an apocalyptic number.

It is an amenable number.

2778536732 is a deficient number, since it is larger than the sum of its proper divisors (2083902556).

2778536732 is a wasteful number, since it uses less digits than its factorization.

2778536732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694634187 (or 694634185 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 50.

The square root of 2778536732 is about 52711.8272496790. The cubic root of 2778536732 is about 1405.8491225347.

The spelling of 2778536732 in words is "two billion, seven hundred seventy-eight million, five hundred thirty-six thousand, seven hundred thirty-two".