5194432768 has 54 divisors (see below), whose sum is σ = 12061432446. Its totient is φ = 2226180096.

The previous prime is 5194432751. The next prime is 5194432777. The reversal of 5194432768 is 8672344915.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 5121978624 + 72454144 = 71568^2 + 8512^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194505 + ... + 219592.

Almost surely, 2^5194432768 is an apocalyptic number.

It is an amenable number.

5194432768 is an abundant number, since it is smaller than the sum of its proper divisors (6866999678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5194432768 is an equidigital number, since it uses as much as digits as its factorization.

5194432768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414127 (or 414106 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 5194432768 is about 72072.4133632280. The cubic root of 5194432768 is about 1731.8597137415.

The spelling of 5194432768 in words is "five billion, one hundred ninety-four million, four hundred thirty-two thousand, seven hundred sixty-eight".