690425326306105 has 16 divisors (see below), whose sum is σ = 892243827190800. Its totient is φ = 509851481776128.

The previous prime is 690425326306049. The next prime is 690425326306109. The reversal of 690425326306105 is 501603623524096.

It can be written as a sum of positive squares in 8 ways, for example, as 20368649290896 + 670056677015209 = 4513164^2 + 25885453^2 .

It is a cyclic number.

It is not a de Polignac number, because 690425326306105 - 2¹³ = 690425326297913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690425326306109) 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 in 15 ways as a sum of consecutive naturals, for example, 20892121 + ... + 42630169.

It is an arithmetic number, because the mean of its divisors is an integer number (55765239199425).

Almost surely, 2^{690425326306105} is an apocalyptic number.

690425326306105 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

690425326306105 is a deficient number, since it is larger than the sum of its proper divisors (201818500884695).

690425326306105 is a wasteful number, since it uses less digits than its factorization.

690425326306105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22226700.

The product of its (nonzero) digits is 6998400, while the sum is 52.

The spelling of 690425326306105 in words is "six hundred ninety trillion, four hundred twenty-five billion, three hundred twenty-six million, three hundred six thousand, one hundred five".