68015480734 has 4 divisors (see below), whose sum is σ = 102023221104. Its totient is φ = 34007740366.

The previous prime is 68015480651. The next prime is 68015480737. The reversal of 68015480734 is 43708451086.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×68015480734² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68015480737) by changing a digit.

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 as a sum of consecutive naturals, namely, 17003870182 + ... + 17003870185.

It is an arithmetic number, because the mean of its divisors is an integer number (25505805276).

Almost surely, 2^68015480734 is an apocalyptic number.

68015480734 is a deficient number, since it is larger than the sum of its proper divisors (34007740370).

68015480734 is a wasteful number, since it uses less digits than its factorization.

68015480734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34007740369.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 68015480734 in words is "sixty-eight billion, fifteen million, four hundred eighty thousand, seven hundred thirty-four".