68123988330372 has 36 divisors (see below), whose sum is σ = 185448634900620. Its totient is φ = 20961227178432.

The previous prime is 68123988330371. The next prime is 68123988330421. The reversal of 68123988330372 is 27303388932186.

68123988330372 is a `hidden beast` number, since 6 + 81 + 23 + 98 + 83 + 3 + 0 + 372 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21525015924036 + 46598972406336 = 4639506^2 + 6826344^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (68123988330371) 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, 72782038347 + ... + 72782039282.

Almost surely, 2^{68123988330372} is an apocalyptic number.

It is an amenable number.

68123988330372 is an abundant number, since it is smaller than the sum of its proper divisors (117324646570248).

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

68123988330372 is a wasteful number, since it uses less digits than its factorization.

68123988330372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145564077652 (or 145564077647 counting only the distinct ones).

The product of its (nonzero) digits is 62705664, while the sum is 63.

The spelling of 68123988330372 in words is "sixty-eight trillion, one hundred twenty-three billion, nine hundred eighty-eight million, three hundred thirty thousand, three hundred seventy-two".