2144659626487 has 16 divisors (see below), whose sum is σ = 2454005514240. Its totient is φ = 1836056469312.

The previous prime is 2144659626451. The next prime is 2144659626497. The reversal of 2144659626487 is 7846269564412.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2144659626487 is a prime.

It is a super-2 number, since 2×2144659626487² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144659626497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21374478 + ... + 21474580.

It is an arithmetic number, because the mean of its divisors is an integer number (153375344640).

Almost surely, 2^{2144659626487} is an apocalyptic number.

2144659626487 is a deficient number, since it is larger than the sum of its proper divisors (309345887753).

2144659626487 is a wasteful number, since it uses less digits than its factorization.

2144659626487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103782.

The product of its digits is 139345920, while the sum is 64.

The spelling of 2144659626487 in words is "two trillion, one hundred forty-four billion, six hundred fifty-nine million, six hundred twenty-six thousand, four hundred eighty-seven".