80042420308623 has 16 divisors (see below), whose sum is σ = 106745034090240. Its totient is φ = 53350711044224.

The previous prime is 80042420308619. The next prime is 80042420308637. The reversal of 80042420308623 is 32680302424008.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80042420308623 - 2² = 80042420308619 is a prime.

It is a super-2 number, since 2×80042420308623² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80042420309623) 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, 348573415 + ... + 348802967.

It is an arithmetic number, because the mean of its divisors is an integer number (6671564630640).

Almost surely, 2^{80042420308623} is an apocalyptic number.

80042420308623 is a deficient number, since it is larger than the sum of its proper divisors (26702613781617).

80042420308623 is a wasteful number, since it uses less digits than its factorization.

80042420308623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252798.

The product of its (nonzero) digits is 442368, while the sum is 42.

The spelling of 80042420308623 in words is "eighty trillion, forty-two billion, four hundred twenty million, three hundred eight thousand, six hundred twenty-three".