4266649894842 has 24 divisors (see below), whose sum is σ = 9244706062644. Its totient is φ = 1422170792064.

The previous prime is 4266649894799. The next prime is 4266649894849. The reversal of 4266649894842 is 2484989466624.

It can be written as a sum of positive squares in 2 ways, for example, as 4012806233601 + 253843661241 = 2003199^2 + 503829^2 .

It is not an unprimeable number, because it can be changed into a prime (4266649894849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3243633 + ... + 4365140.

Almost surely, 2^{4266649894842} is an apocalyptic number.

4266649894842 is an abundant number, since it is smaller than the sum of its proper divisors (4978056167802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4266649894842 is a wasteful number, since it uses less digits than its factorization.

4266649894842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7639934 (or 7639931 counting only the distinct ones).

The product of its digits is 1146617856, while the sum is 72.

The spelling of 4266649894842 in words is "four trillion, two hundred sixty-six billion, six hundred forty-nine million, eight hundred ninety-four thousand, eight hundred forty-two".