2051015434689 has 32 divisors (see below), whose sum is σ = 2989662505984. Its totient is φ = 1243051064640.

The previous prime is 2051015434621. The next prime is 2051015434697. The reversal of 2051015434689 is 9864345101502.

It is not a de Polignac number, because 2051015434689 - 2¹⁵ = 2051015401921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051015434619) 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, 12100254 + ... + 12268584.

It is an arithmetic number, because the mean of its divisors is an integer number (93426953312).

Almost surely, 2^{2051015434689} is an apocalyptic number.

It is an amenable number.

2051015434689 is a deficient number, since it is larger than the sum of its proper divisors (938647071295).

2051015434689 is a wasteful number, since it uses less digits than its factorization.

2051015434689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173077.

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 2051015434689 in words is "two trillion, fifty-one billion, fifteen million, four hundred thirty-four thousand, six hundred eighty-nine".