9942799494 has 32 divisors (see below), whose sum is σ = 19953077760. Its totient is φ = 3303038592.

The previous prime is 9942799463. The next prime is 9942799499. The reversal of 9942799494 is 4949972499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942799499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3430654 + ... + 3433550.

It is an arithmetic number, because the mean of its divisors is an integer number (623533680).

Almost surely, 2^9942799494 is an apocalyptic number.

9942799494 is an abundant number, since it is smaller than the sum of its proper divisors (10010278266).

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

9942799494 is a wasteful number, since it uses less digits than its factorization.

9942799494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4644.

The product of its digits is 52907904, while the sum is 66.

The square root of 9942799494 is about 99713.5873088517. The cubic root of 9942799494 is about 2150.3190075773.

The spelling of 9942799494 in words is "nine billion, nine hundred forty-two million, seven hundred ninety-nine thousand, four hundred ninety-four".