2991224751 has 16 divisors (see below), whose sum is σ = 4156938240. Its totient is φ = 1911080160.

The previous prime is 2991224723. The next prime is 2991224791. The reversal of 2991224751 is 1574221992.

It is not a de Polignac number, because 2991224751 - 2¹⁰ = 2991223727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991224711) 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 15 ways as a sum of consecutive naturals, for example, 146556 + ... + 165713.

It is an arithmetic number, because the mean of its divisors is an integer number (259808640).

Almost surely, 2^2991224751 is an apocalyptic number.

2991224751 is a deficient number, since it is larger than the sum of its proper divisors (1165713489).

2991224751 is a wasteful number, since it uses less digits than its factorization.

2991224751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312406.

The product of its digits is 90720, while the sum is 42.

The square root of 2991224751 is about 54692.0903879162. The cubic root of 2991224751 is about 1440.8419637253.

The spelling of 2991224751 in words is "two billion, nine hundred ninety-one million, two hundred twenty-four thousand, seven hundred fifty-one".