68438647062 has 32 divisors (see below), whose sum is σ = 152142680160. Its totient is φ = 22804362720.

The previous prime is 68438647037. The next prime is 68438647087. The reversal of 68438647062 is 26074683486.

68438647062 is a `hidden beast` number, since 6 + 84 + 38 + 6 + 470 + 62 = 666.

It is an interprime number because it is at equal distance from previous prime (68438647037) and next prime (68438647087).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89889 + ... + 380732.

It is an arithmetic number, because the mean of its divisors is an integer number (4754458755).

Almost surely, 2^68438647062 is an apocalyptic number.

68438647062 is an abundant number, since it is smaller than the sum of its proper divisors (83704033098).

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

68438647062 is a wasteful number, since it uses less digits than its factorization.

68438647062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473325 (or 473319 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 68438647062 in words is "sixty-eight billion, four hundred thirty-eight million, six hundred forty-seven thousand, sixty-two".