2051251046623 has 2 divisors, whose sum is σ = 2051251046624. Its totient is φ = 2051251046622.

The previous prime is 2051251046609. The next prime is 2051251046629. The reversal of 2051251046623 is 3266401521502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2051251046623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2051251046629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025625523311 + 1025625523312.

It is an arithmetic number, because the mean of its divisors is an integer number (1025625523312).

Almost surely, 2^{2051251046623} is an apocalyptic number.

2051251046623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2051251046623 is an equidigital number, since it uses as much as digits as its factorization.

2051251046623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 2051251046623 in words is "two trillion, fifty-one billion, two hundred fifty-one million, forty-six thousand, six hundred twenty-three".