2106992751 has 32 divisors (see below), whose sum is σ = 2926215168. Its totient is φ = 1347619680.

The previous prime is 2106992749. The next prime is 2106992753. The reversal of 2106992751 is 1572996012.

It is an interprime number because it is at equal distance from previous prime (2106992749) and next prime (2106992753).

It is not a de Polignac number, because 2106992751 - 2¹ = 2106992749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106992753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2559726 + ... + 2560548.

It is an arithmetic number, because the mean of its divisors is an integer number (91444224).

Almost surely, 2^2106992751 is an apocalyptic number.

2106992751 is a deficient number, since it is larger than the sum of its proper divisors (819222417).

2106992751 is a wasteful number, since it uses less digits than its factorization.

2106992751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 2106992751 is about 45901.9907084649. The cubic root of 2106992751 is about 1281.9989824702.

The spelling of 2106992751 in words is "two billion, one hundred six million, nine hundred ninety-two thousand, seven hundred fifty-one".