4990126751 has 4 divisors (see below), whose sum is σ = 4993139952. Its totient is φ = 4987113552.

The previous prime is 4990126727. The next prime is 4990126753. The reversal of 4990126751 is 1576210994.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4990126751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990126753) 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 3 ways as a sum of consecutive naturals, for example, 1504115 + ... + 1507428.

It is an arithmetic number, because the mean of its divisors is an integer number (1248284988).

Almost surely, 2^4990126751 is an apocalyptic number.

4990126751 is a deficient number, since it is larger than the sum of its proper divisors (3013201).

4990126751 is a wasteful number, since it uses less digits than its factorization.

4990126751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3013200.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 4990126751 is about 70640.8292066281. The cubic root of 4990126751 is about 1708.8496704637.

The spelling of 4990126751 in words is "four billion, nine hundred ninety million, one hundred twenty-six thousand, seven hundred fifty-one".