4467997644 has 48 divisors (see below), whose sum is σ = 11542855296. Its totient is φ = 1333728000.

The previous prime is 4467997621. The next prime is 4467997663.

4467997644 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243757 + ... + 261444.

It is an arithmetic number, because the mean of its divisors is an integer number (240476152).

Almost surely, 2^4467997644 is an apocalyptic number.

4467997644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4467997644 is an abundant number, since it is smaller than the sum of its proper divisors (7074857652).

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

4467997644 is a wasteful number, since it uses less digits than its factorization.

4467997644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505286 (or 505284 counting only the distinct ones).

The product of its digits is 36578304, while the sum is 60.

The square root of 4467997644 is about 66843.0822449115. The cubic root of 4467997644 is about 1647.0406266740.

The spelling of 4467997644 in words is "four billion, four hundred sixty-seven million, nine hundred ninety-seven thousand, six hundred forty-four".