4991615004 has 24 divisors (see below), whose sum is σ = 12332225808. Its totient is φ = 1565996800.

The previous prime is 4991614913. The next prime is 4991615017. The reversal of 4991615004 is 4005161994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12234147 + ... + 12234554.

It is an arithmetic number, because the mean of its divisors is an integer number (513842742).

Almost surely, 2^4991615004 is an apocalyptic number.

It is an amenable number.

4991615004 is an abundant number, since it is smaller than the sum of its proper divisors (7340610804).

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

4991615004 is a wasteful number, since it uses less digits than its factorization.

4991615004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24468725 (or 24468723 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 4991615004 is about 70651.3623647839. The cubic root of 4991615004 is about 1709.0195357456.

Adding to 4991615004 its reverse (4005161994), we get a palindrome (8996776998).

It can be divided in two parts, 499 and 1615004, that added together give a triangular number (1615503 = T₁₇₉₇).

The spelling of 4991615004 in words is "four billion, nine hundred ninety-one million, six hundred fifteen thousand, four".