80426635390 has 16 divisors (see below), whose sum is σ = 152387309520. Its totient is φ = 30477461760.

The previous prime is 80426635369. The next prime is 80426635397. The reversal of 80426635390 is 9353662408.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 80426635390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80426635397) by changing a digit.

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, 211648851 + ... + 211649230.

It is an arithmetic number, because the mean of its divisors is an integer number (9524206845).

Almost surely, 2^80426635390 is an apocalyptic number.

80426635390 is a deficient number, since it is larger than the sum of its proper divisors (71960674130).

80426635390 is a wasteful number, since it uses less digits than its factorization.

80426635390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423298107.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 80426635390 in words is "eighty billion, four hundred twenty-six million, six hundred thirty-five thousand, three hundred ninety".