2126237018667 has 16 divisors (see below), whose sum is σ = 2844517855872. Its totient is φ = 1412724741120.

The previous prime is 2126237018627. The next prime is 2126237018677. The reversal of 2126237018667 is 7668107326212.

It is a happy number.

It is not a de Polignac number, because 2126237018667 - 2⁷ = 2126237018539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2126237018627) 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, 8961192 + ... + 9195402.

It is an arithmetic number, because the mean of its divisors is an integer number (177782365992).

Almost surely, 2^{2126237018667} is an apocalyptic number.

2126237018667 is a deficient number, since it is larger than the sum of its proper divisors (718280837205).

2126237018667 is a wasteful number, since it uses less digits than its factorization.

2126237018667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244378.

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 2126237018667 in words is "two trillion, one hundred twenty-six billion, two hundred thirty-seven million, eighteen thousand, six hundred sixty-seven".