68231772360 has 80 divisors (see below), whose sum is σ = 229334579100. Its totient is φ = 18195138432.

The previous prime is 68231772353. The next prime is 68231772391. The reversal of 68231772360 is 6327713286.

It can be written as a sum of positive squares in 2 ways, for example, as 67755048804 + 476723556 = 260298^2 + 21834^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10526355 + ... + 10532834.

Almost surely, 2^68231772360 is an apocalyptic number.

68231772360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68231772360 is an abundant number, since it is smaller than the sum of its proper divisors (161102806740).

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

68231772360 is a wasteful number, since it uses less digits than its factorization.

68231772360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21059212 (or 21059199 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 68231772360 in words is "sixty-eight billion, two hundred thirty-one million, seven hundred seventy-two thousand, three hundred sixty".