4531781464 has 48 divisors (see below), whose sum is σ = 9907569000. Its totient is φ = 1937634048.

The previous prime is 4531781437. The next prime is 4531781479. The reversal of 4531781464 is 4641871354.

It is a self number, because there is not a number n which added to its sum of digits gives 4531781464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156387 + ... + 183085.

Almost surely, 2^4531781464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4531781464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4953784500).

4531781464 is an abundant number, since it is smaller than the sum of its proper divisors (5375787536).

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

4531781464 is a wasteful number, since it uses less digits than its factorization.

4531781464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27152 (or 27141 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 4531781464 is about 67318.5075889239. The cubic root of 4531781464 is about 1654.8411799537.

The spelling of 4531781464 in words is "four billion, five hundred thirty-one million, seven hundred eighty-one thousand, four hundred sixty-four".