5263694738 has 4 divisors (see below), whose sum is σ = 7895542110. Its totient is φ = 2631847368.

The previous prime is 5263694729. The next prime is 5263694741. The reversal of 5263694738 is 8374963625.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 3299698249 + 1963996489 = 57443^2 + 44317^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5263694738.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315923683 + ... + 1315923686.

Almost surely, 2^5263694738 is an apocalyptic number.

5263694738 is a deficient number, since it is larger than the sum of its proper divisors (2631847372).

5263694738 is a wasteful number, since it uses less digits than its factorization.

5263694738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631847371.

The product of its digits is 6531840, while the sum is 53.

The square root of 5263694738 is about 72551.3248535132. The cubic root of 5263694738 is about 1739.5232253852.

The spelling of 5263694738 in words is "five billion, two hundred sixty-three million, six hundred ninety-four thousand, seven hundred thirty-eight".