2051297326 has 48 divisors (see below), whose sum is σ = 3404678400. Its totient is φ = 926269344.

The previous prime is 2051297317. The next prime is 2051297341. The reversal of 2051297326 is 6237921502.

2051297326 is a nontrivial binomial coefficient, being equal to C(64052, 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5412205 + ... + 5412583.

It is an arithmetic number, because the mean of its divisors is an integer number (70930800).

Almost surely, 2^2051297326 is an apocalyptic number.

2051297326 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2051297326 is the 64051-st triangular number, the 32026-th hexagonal number and also the 22646-th decagonal number.

2051297326 is the 21351-st centered nonagonal number.

2051297326 is a deficient number, since it is larger than the sum of its proper divisors (1353381074).

2051297326 is a wasteful number, since it uses less digits than its factorization.

2051297326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 2051297326 is about 45291.2499937902. The cubic root of 2051297326 is about 1270.6020098327.

The spelling of 2051297326 in words is "two billion, fifty-one million, two hundred ninety-seven thousand, three hundred twenty-six".