68153772 has 12 divisors (see below), whose sum is σ = 159025496. Its totient is φ = 22717920.

The previous prime is 68153759. The next prime is 68153773. The reversal of 68153772 is 27735186.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 68153772.

It is not an unprimeable number, because it can be changed into a prime (68153773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2839729 + ... + 2839752.

Almost surely, 2^68153772 is an apocalyptic number.

It is an amenable number.

68153772 is an abundant number, since it is smaller than the sum of its proper divisors (90871724).

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

68153772 is a wasteful number, since it uses less digits than its factorization.

68153772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5679488 (or 5679486 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 68153772 is about 8255.5297831211. The cubic root of 68153772 is about 408.4729473258.

The spelling of 68153772 in words is "sixty-eight million, one hundred fifty-three thousand, seven hundred seventy-two".