42279068664 has 96 divisors (see below), whose sum is σ = 136616072400. Its totient is φ = 12079730880.

The previous prime is 42279068633. The next prime is 42279068669. The reversal of 42279068664 is 46686097224.

42279068664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 42279068664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42279068669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1986727 + ... + 2007894.

Almost surely, 2^42279068664 is an apocalyptic number.

It is an amenable number.

42279068664 is an abundant number, since it is smaller than the sum of its proper divisors (94337003736).

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

42279068664 is a wasteful number, since it uses less digits than its factorization.

42279068664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3994650 (or 3994633 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 42279068664 in words is "forty-two billion, two hundred seventy-nine million, sixty-eight thousand, six hundred sixty-four".