34778738825 has 6 divisors (see below), whose sum is σ = 43125636174. Its totient is φ = 27822991040.

The previous prime is 34778738801. The next prime is 34778738837. The reversal of 34778738825 is 52883787743.

It can be written as a sum of positive squares in 3 ways, for example, as 9618117184 + 25160621641 = 98072^2 + 158621^2 .

It is not a de Polignac number, because 34778738825 - 2⁸ = 34778738569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 695574752 + ... + 695574801.

It is an arithmetic number, because the mean of its divisors is an integer number (7187606029).

Almost surely, 2^34778738825 is an apocalyptic number.

It is an amenable number.

34778738825 is a deficient number, since it is larger than the sum of its proper divisors (8346897349).

34778738825 is a wasteful number, since it uses less digits than its factorization.

34778738825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391149563 (or 1391149558 counting only the distinct ones).

The product of its digits is 63221760, while the sum is 62.

The spelling of 34778738825 in words is "thirty-four billion, seven hundred seventy-eight million, seven hundred thirty-eight thousand, eight hundred twenty-five".