68767287747 has 8 divisors (see below), whose sum is σ = 91705273344. Its totient is φ = 45837080328.

The previous prime is 68767287739. The next prime is 68767287769. The reversal of 68767287747 is 74778276786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68767287747 - 2³ = 68767287739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68767287847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923883 + ... + 1959300.

It is an arithmetic number, because the mean of its divisors is an integer number (11463159168).

Almost surely, 2^68767287747 is an apocalyptic number.

68767287747 is a deficient number, since it is larger than the sum of its proper divisors (22937985597).

68767287747 is a wasteful number, since it uses less digits than its factorization.

68767287747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889089.

The product of its digits is 309786624, while the sum is 69.

The spelling of 68767287747 in words is "sixty-eight billion, seven hundred sixty-seven million, two hundred eighty-seven thousand, seven hundred forty-seven".