2051526400651 has 8 divisors (see below), whose sum is σ = 2524955570144. Its totient is φ = 1623185723520.

The previous prime is 2051526400643. The next prime is 2051526400669. The reversal of 2051526400651 is 1560046251502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2051526400651 - 2³ = 2051526400643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2051526400651.

It is not an unprimeable number, because it can be changed into a prime (2051526400601) 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 7 ways as a sum of consecutive naturals, for example, 11272122990 + ... + 11272123171.

It is an arithmetic number, because the mean of its divisors is an integer number (315619446268).

Almost surely, 2^{2051526400651} is an apocalyptic number.

2051526400651 is a deficient number, since it is larger than the sum of its proper divisors (473429169493).

2051526400651 is a wasteful number, since it uses less digits than its factorization.

2051526400651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22544246181.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 2051526400651 in words is "two trillion, fifty-one billion, five hundred twenty-six million, four hundred thousand, six hundred fifty-one".