68702488205 has 16 divisors (see below), whose sum is σ = 88792354224. Its totient is φ = 50729802240.

The previous prime is 68702488201. The next prime is 68702488241. The reversal of 68702488205 is 50288420786.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7228740484 + 61473747721 = 85022^2 + 247939^2 .

It is not a de Polignac number, because 68702488205 - 2² = 68702488201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68702488201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857417 + ... + 934113.

It is an arithmetic number, because the mean of its divisors is an integer number (5549522139).

Almost surely, 2^68702488205 is an apocalyptic number.

68702488205 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68702488205 is a deficient number, since it is larger than the sum of its proper divisors (20089866019).

68702488205 is a wasteful number, since it uses less digits than its factorization.

68702488205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90496.

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 68702488205 in words is "sixty-eight billion, seven hundred two million, four hundred eighty-eight thousand, two hundred five".