68135461244 has 12 divisors (see below), whose sum is σ = 119304169824. Its totient is φ = 34048555584.

The previous prime is 68135461223. The next prime is 68135461291. The reversal of 68135461244 is 44216453186.

It is a super-4 number, since 4×68135461244⁴ (a number of 44 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68135461195 and 68135461204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4785764 + ... + 4799979.

It is an arithmetic number, because the mean of its divisors is an integer number (9942014152).

Almost surely, 2^68135461244 is an apocalyptic number.

It is an amenable number.

68135461244 is a deficient number, since it is larger than the sum of its proper divisors (51168708580).

68135461244 is a wasteful number, since it uses less digits than its factorization.

68135461244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9587524 (or 9587522 counting only the distinct ones).

The product of its digits is 552960, while the sum is 44.

The spelling of 68135461244 in words is "sixty-eight billion, one hundred thirty-five million, four hundred sixty-one thousand, two hundred forty-four".