6492747778 has 8 divisors (see below), whose sum is σ = 10624496400. Its totient is φ = 2951248980.

The previous prime is 6492747769. The next prime is 6492747839. The reversal of 6492747778 is 8777472946.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147562428 + ... + 147562471.

It is an arithmetic number, because the mean of its divisors is an integer number (1328062050).

Almost surely, 2^6492747778 is an apocalyptic number.

6492747778 is a deficient number, since it is larger than the sum of its proper divisors (4131748622).

6492747778 is a wasteful number, since it uses less digits than its factorization.

6492747778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295124912.

The product of its digits is 33191424, while the sum is 61.

The square root of 6492747778 is about 80577.5885591025. The cubic root of 6492747778 is about 1865.5612432042.

The spelling of 6492747778 in words is "six billion, four hundred ninety-two million, seven hundred forty-seven thousand, seven hundred seventy-eight".