5190444778 has 8 divisors (see below), whose sum is σ = 7786604772. Its totient is φ = 2594909856.

The previous prime is 5190444773. The next prime is 5190444803. The reversal of 5190444778 is 8774440915.

It can be written as a sum of positive squares in 2 ways, for example, as 4979701489 + 210743289 = 70567^2 + 14517^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5190444773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134925 + ... + 169072.

Almost surely, 2^5190444778 is an apocalyptic number.

5190444778 is a deficient number, since it is larger than the sum of its proper divisors (2596159994).

5190444778 is a wasteful number, since it uses less digits than its factorization.

5190444778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312536.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 5190444778 is about 72044.7415013754. The cubic root of 5190444778 is about 1731.4163924787.

The spelling of 5190444778 in words is "five billion, one hundred ninety million, four hundred forty-four thousand, seven hundred seventy-eight".