2051327811455 has 32 divisors (see below), whose sum is σ = 2684466489600. Its totient is φ = 1495719954432.

The previous prime is 2051327811383. The next prime is 2051327811457. The reversal of 2051327811455 is 5541187231502.

It is a cyclic number.

It is not a de Polignac number, because 2051327811455 - 2²⁶ = 2051260702591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051327811457) 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, 3912827 + ... + 4406003.

It is an arithmetic number, because the mean of its divisors is an integer number (83889577800).

Almost surely, 2^{2051327811455} is an apocalyptic number.

2051327811455 is a deficient number, since it is larger than the sum of its proper divisors (633138678145).

2051327811455 is a wasteful number, since it uses less digits than its factorization.

2051327811455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494003.

The product of its (nonzero) digits is 336000, while the sum is 44.

The spelling of 2051327811455 in words is "two trillion, fifty-one billion, three hundred twenty-seven million, eight hundred eleven thousand, four hundred fifty-five".