5451125642 has 8 divisors (see below), whose sum is σ = 8288698116. Its totient is φ = 2688226272.

The previous prime is 5451125627. The next prime is 5451125651. The reversal of 5451125642 is 2465211545.

It can be written as a sum of positive squares in 2 ways, for example, as 4820663761 + 630461881 = 69431^2 + 25109^2 .

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, 18668093 + ... + 18668384.

Almost surely, 2^5451125642 is an apocalyptic number.

5451125642 is a deficient number, since it is larger than the sum of its proper divisors (2837572474).

5451125642 is a wasteful number, since it uses less digits than its factorization.

5451125642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37336552.

The product of its digits is 48000, while the sum is 35.

The square root of 5451125642 is about 73831.7387171669. The cubic root of 5451125642 is about 1759.9300120671.

The spelling of 5451125642 in words is "five billion, four hundred fifty-one million, one hundred twenty-five thousand, six hundred forty-two".