4991129319 has 16 divisors (see below), whose sum is σ = 7456037760. Its totient is φ = 2943171360.

The previous prime is 4991129291. The next prime is 4991129321. The reversal of 4991129319 is 9139211994.

It is a happy number.

It is not a de Polignac number, because 4991129319 - 2³¹ = 2843645671 is a prime.

It is a super-2 number, since 2×4991129319² = 49822743757962807522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991129359) 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, 2042649 + ... + 2045090.

It is an arithmetic number, because the mean of its divisors is an integer number (466002360).

Almost surely, 2^4991129319 is an apocalyptic number.

4991129319 is a deficient number, since it is larger than the sum of its proper divisors (2464908441).

4991129319 is a wasteful number, since it uses less digits than its factorization.

4991129319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087790.

The product of its digits is 157464, while the sum is 48.

The square root of 4991129319 is about 70647.9250863038. The cubic root of 4991129319 is about 1708.9641046493.

The spelling of 4991129319 in words is "four billion, nine hundred ninety-one million, one hundred twenty-nine thousand, three hundred nineteen".