68499280077 has 16 divisors (see below), whose sum is σ = 93286260480. Its totient is φ = 44689465152.

The previous prime is 68499280067. The next prime is 68499280117. The reversal of 68499280077 is 77008299486.

68499280077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 68499280077 - 2⁶ = 68499280013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68499280077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68499280067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1515903 + ... + 1560435.

It is an arithmetic number, because the mean of its divisors is an integer number (5830391280).

Almost surely, 2^68499280077 is an apocalyptic number.

It is an amenable number.

68499280077 is a deficient number, since it is larger than the sum of its proper divisors (24786980403).

68499280077 is a wasteful number, since it uses less digits than its factorization.

68499280077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55492.

The product of its (nonzero) digits is 12192768, while the sum is 60.

The spelling of 68499280077 in words is "sixty-eight billion, four hundred ninety-nine million, two hundred eighty thousand, seventy-seven".