5451438478 has 8 divisors (see below), whose sum is σ = 8178253560. Its totient is φ = 2725353960.

The previous prime is 5451438463. The next prime is 5451438479. The reversal of 5451438478 is 8748341545.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451438479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163588 + ... + 194071.

It is an arithmetic number, because the mean of its divisors is an integer number (1022281695).

Almost surely, 2^5451438478 is an apocalyptic number.

5451438478 is a deficient number, since it is larger than the sum of its proper divisors (2726815082).

5451438478 is a wasteful number, since it uses less digits than its factorization.

5451438478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365282.

The product of its digits is 2150400, while the sum is 49.

The square root of 5451438478 is about 73833.8572607445. The cubic root of 5451438478 is about 1759.9636784429.

The spelling of 5451438478 in words is "five billion, four hundred fifty-one million, four hundred thirty-eight thousand, four hundred seventy-eight".