2126152512651 has 16 divisors (see below), whose sum is σ = 2911586805504. Its totient is φ = 1379079211104.

The previous prime is 2126152512647. The next prime is 2126152512691. The reversal of 2126152512651 is 1562152516212.

It is a happy number.

It is not a de Polignac number, because 2126152512651 - 2² = 2126152512647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2126152512611) 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 15 ways as a sum of consecutive naturals, for example, 3130000 + ... + 3748226.

It is an arithmetic number, because the mean of its divisors is an integer number (181974175344).

Almost surely, 2^{2126152512651} is an apocalyptic number.

2126152512651 is a deficient number, since it is larger than the sum of its proper divisors (785434292853).

2126152512651 is a wasteful number, since it uses less digits than its factorization.

2126152512651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649250.

The product of its digits is 72000, while the sum is 39.

The spelling of 2126152512651 in words is "two trillion, one hundred twenty-six billion, one hundred fifty-two million, five hundred twelve thousand, six hundred fifty-one".