5158993786 has 4 divisors (see below), whose sum is σ = 7738490682. Its totient is φ = 2579496892.

The previous prime is 5158993759. The next prime is 5158993787. The reversal of 5158993786 is 6873998515.

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., 2843555625 + 2315438161 = 53325^2 + 48119^2 .

It is a super-2 number, since 2×5158993786² = 53230433767973227592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5158993787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289748445 + ... + 1289748448.

Almost surely, 2^5158993786 is an apocalyptic number.

5158993786 is a deficient number, since it is larger than the sum of its proper divisors (2579496896).

5158993786 is a wasteful number, since it uses less digits than its factorization.

5158993786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579496895.

The product of its digits is 16329600, while the sum is 61.

The square root of 5158993786 is about 71826.1358142007. The cubic root of 5158993786 is about 1727.9121890839.

The spelling of 5158993786 in words is "five billion, one hundred fifty-eight million, nine hundred ninety-three thousand, seven hundred eighty-six".