68811402 has 16 divisors (see below), whose sum is σ = 150134112. Its totient is φ = 20851920.

The previous prime is 68811397. The next prime is 68811433. The reversal of 68811402 is 20411886.

It is a self number, because there is not a number n which added to its sum of digits gives 68811402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521233 + ... + 521364.

It is an arithmetic number, because the mean of its divisors is an integer number (9383382).

Almost surely, 2^68811402 is an apocalyptic number.

68811402 is an abundant number, since it is smaller than the sum of its proper divisors (81322710).

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

68811402 is a wasteful number, since it uses less digits than its factorization.

68811402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042613.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 68811402 is about 8295.2638294391. The cubic root of 68811402 is about 409.7825577126.

It can be divided in two parts, 688 and 11402, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 68811402 in words is "sixty-eight million, eight hundred eleven thousand, four hundred two".