4921538512 has 60 divisors (see below), whose sum is σ = 10725077440. Its totient is φ = 2185001280.

The previous prime is 4921538507. The next prime is 4921538527. The reversal of 4921538512 is 2158351294.

It is a happy number.

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, 53689 + ... + 112807.

Almost surely, 2^4921538512 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 4921538512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5362538720).

4921538512 is an abundant number, since it is smaller than the sum of its proper divisors (5803538928).

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

4921538512 is a wasteful number, since it uses less digits than its factorization.

4921538512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59192 (or 59175 counting only the distinct ones).

The product of its digits is 86400, while the sum is 40.

The square root of 4921538512 is about 70153.6778223352. The cubic root of 4921538512 is about 1700.9842641625.

The spelling of 4921538512 in words is "four billion, nine hundred twenty-one million, five hundred thirty-eight thousand, five hundred twelve".