5121493494 has 32 divisors (see below), whose sum is σ = 11144646240. Its totient is φ = 1559596032.

The previous prime is 5121493471. The next prime is 5121493499. The reversal of 5121493494 is 4943941215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121493499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330889 + ... + 346020.

It is an arithmetic number, because the mean of its divisors is an integer number (348270195).

Almost surely, 2^5121493494 is an apocalyptic number.

5121493494 is an abundant number, since it is smaller than the sum of its proper divisors (6023152746).

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

5121493494 is a wasteful number, since it uses less digits than its factorization.

5121493494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677024.

The product of its digits is 155520, while the sum is 42.

The square root of 5121493494 is about 71564.6106256437. The cubic root of 5121493494 is about 1723.7153209044.

The spelling of 5121493494 in words is "five billion, one hundred twenty-one million, four hundred ninety-three thousand, four hundred ninety-four".