2651523654063 has 4 divisors (see below), whose sum is σ = 3535364872088. Its totient is φ = 1767682436040.

The previous prime is 2651523654029. The next prime is 2651523654071. The reversal of 2651523654063 is 3604563251562.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2651523654063 - 2¹⁰ = 2651523653039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651523654863) 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 3 ways as a sum of consecutive naturals, for example, 441920609008 + ... + 441920609013.

It is an arithmetic number, because the mean of its divisors is an integer number (883841218022).

Almost surely, 2^{2651523654063} is an apocalyptic number.

2651523654063 is a deficient number, since it is larger than the sum of its proper divisors (883841218025).

2651523654063 is an equidigital number, since it uses as much as digits as its factorization.

2651523654063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883841218024.

The product of its (nonzero) digits is 3888000, while the sum is 48.

The spelling of 2651523654063 in words is "two trillion, six hundred fifty-one billion, five hundred twenty-three million, six hundred fifty-four thousand, sixty-three".