4991120694 has 120 divisors (see below), whose sum is σ = 13231480680. Its totient is φ = 1401732864.

The previous prime is 4991120657. The next prime is 4991120699. The reversal of 4991120694 is 4960211994.

It is a super-2 number, since 2×4991120694² = 49822571564150083272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991120699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 463014 + ... + 473670.

It is an arithmetic number, because the mean of its divisors is an integer number (110262339).

Almost surely, 2^4991120694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4991120694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6615740340).

4991120694 is an abundant number, since it is smaller than the sum of its proper divisors (8240359986).

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

4991120694 is a wasteful number, since it uses less digits than its factorization.

4991120694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10744 (or 10728 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 4991120694 is about 70647.8640441450. The cubic root of 4991120694 is about 1708.9631202480.

The spelling of 4991120694 in words is "four billion, nine hundred ninety-one million, one hundred twenty thousand, six hundred ninety-four".