68681952 has 48 divisors (see below), whose sum is σ = 200324880. Its totient is φ = 22893696.

The previous prime is 68681927. The next prime is 68681983. The reversal of 68681952 is 25918686.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 68681898 and 68681907.

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, 38883 + ... + 40610.

It is an arithmetic number, because the mean of its divisors is an integer number (4173435).

Almost surely, 2^68681952 is an apocalyptic number.

It is an amenable number.

68681952 is an abundant number, since it is smaller than the sum of its proper divisors (131642928).

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

68681952 is a wasteful number, since it uses less digits than its factorization.

68681952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79512 (or 79498 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 68681952 is about 8287.4575112033. The cubic root of 68681952 is about 409.5254314735.

The spelling of 68681952 in words is "sixty-eight million, six hundred eighty-one thousand, nine hundred fifty-two".