4992654778 has 8 divisors (see below), whose sum is σ = 7489287540. Its totient is φ = 2496225600.

The previous prime is 4992654767. The next prime is 4992654803. The reversal of 4992654778 is 8774562994.

It can be written as a sum of positive squares in 2 ways, for example, as 4224090049 + 768564729 = 64993^2 + 27723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 52108 + ... + 112696.

Almost surely, 2^4992654778 is an apocalyptic number.

4992654778 is a deficient number, since it is larger than the sum of its proper divisors (2496632762).

4992654778 is a wasteful number, since it uses less digits than its factorization.

4992654778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101792.

The product of its digits is 30481920, while the sum is 61.

The square root of 4992654778 is about 70658.7204667619. The cubic root of 4992654778 is about 1709.1381927806.

The spelling of 4992654778 in words is "four billion, nine hundred ninety-two million, six hundred fifty-four thousand, seven hundred seventy-eight".