653826479990 has 16 divisors (see below), whose sum is σ = 1181262715920. Its totient is φ = 260558358240.

The previous prime is 653826479903. The next prime is 653826480001. The reversal of 653826479990 is 99974628356.

653826479990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×653826479990² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 653826479990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121526396 + ... + 121531775.

It is an arithmetic number, because the mean of its divisors is an integer number (73828919745).

Almost surely, 2^653826479990 is an apocalyptic number.

653826479990 is a deficient number, since it is larger than the sum of its proper divisors (527436235930).

653826479990 is a wasteful number, since it uses less digits than its factorization.

653826479990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243058447.

The product of its (nonzero) digits is 176359680, while the sum is 68.

The spelling of 653826479990 in words is "six hundred fifty-three billion, eight hundred twenty-six million, four hundred seventy-nine thousand, nine hundred ninety".