653811949219 has 12 divisors (see below), whose sum is σ = 773933790448. Its totient is φ = 548653382640.

The previous prime is 653811949169. The next prime is 653811949223. The reversal of 653811949219 is 912949118356.

653811949219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 653811949219 - 2⁹ = 653811948707 is a prime.

It is a super-2 number, since 2×653811949219² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (653811949289) 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, 207821679 + ... + 207824824.

Almost surely, 2^653811949219 is an apocalyptic number.

653811949219 is a deficient number, since it is larger than the sum of its proper divisors (120121841229).

653811949219 is a wasteful number, since it uses less digits than its factorization.

653811949219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415646538 (or 415646527 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 58.

The spelling of 653811949219 in words is "six hundred fifty-three billion, eight hundred eleven million, nine hundred forty-nine thousand, two hundred nineteen".