68458342590 has 64 divisors (see below), whose sum is σ = 199151550720. Its totient is φ = 16595961120.

The previous prime is 68458342583. The next prime is 68458342613. The reversal of 68458342590 is 9524385486.

68458342590 is a `hidden beast` number, since 6 + 8 + 4 + 5 + 8 + 3 + 42 + 590 = 666.

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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11522004 + ... + 11527943.

It is an arithmetic number, because the mean of its divisors is an integer number (3111742980).

Almost surely, 2^68458342590 is an apocalyptic number.

68458342590 is an abundant number, since it is smaller than the sum of its proper divisors (130693208130).

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

68458342590 is a wasteful number, since it uses less digits than its factorization.

68458342590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23049974 (or 23049968 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 68458342590 in words is "sixty-eight billion, four hundred fifty-eight million, three hundred forty-two thousand, five hundred ninety".