5451803861 has 8 divisors (see below), whose sum is σ = 6231214464. Its totient is φ = 4672538640.

The previous prime is 5451803783. The next prime is 5451803867. The reversal of 5451803861 is 1683081545.

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

It is a de Polignac number, because none of the positive numbers 2^k-5451803861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451803867) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 61631 + ... + 121251.

It is an arithmetic number, because the mean of its divisors is an integer number (778901808).

Almost surely, 2^5451803861 is an apocalyptic number.

It is an amenable number.

5451803861 is a deficient number, since it is larger than the sum of its proper divisors (779410603).

5451803861 is a wasteful number, since it uses less digits than its factorization.

5451803861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72691.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 5451803861 is about 73836.3315787018. The cubic root of 5451803861 is about 1760.0029981225.

The spelling of 5451803861 in words is "five billion, four hundred fifty-one million, eight hundred three thousand, eight hundred sixty-one".