68451899302 has 16 divisors (see below), whose sum is σ = 103991270400. Its totient is φ = 33788256840.

The previous prime is 68451899293. The next prime is 68451899311. The reversal of 68451899302 is 20399815486.

It is an interprime number because it is at equal distance from previous prime (68451899293) and next prime (68451899311).

It is a super-2 number, since 2×68451899302² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399699 + ... + 1447777.

It is an arithmetic number, because the mean of its divisors is an integer number (6499454400).

Almost surely, 2^68451899302 is an apocalyptic number.

68451899302 is a deficient number, since it is larger than the sum of its proper divisors (35539371098).

68451899302 is a wasteful number, since it uses less digits than its factorization.

68451899302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57171.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 68451899302 in words is "sixty-eight billion, four hundred fifty-one million, eight hundred ninety-nine thousand, three hundred two".