6444414554 has 4 divisors (see below), whose sum is σ = 9666621834. Its totient is φ = 3222207276.

The previous prime is 6444414527. The next prime is 6444414569. The reversal of 6444414554 is 4554144446.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3372705625 + 3071708929 = 58075^2 + 55423^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1611103637 + ... + 1611103640.

Almost surely, 2^6444414554 is an apocalyptic number.

6444414554 is a deficient number, since it is larger than the sum of its proper divisors (3222207280).

6444414554 is a wasteful number, since it uses less digits than its factorization.

6444414554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222207279.

The product of its digits is 614400, while the sum is 41.

The square root of 6444414554 is about 80277.1110217601. Note that the first 3 decimals coincide. The cubic root of 6444414554 is about 1860.9205134538.

The spelling of 6444414554 in words is "six billion, four hundred forty-four million, four hundred fourteen thousand, five hundred fifty-four".