80825402439 has 24 divisors (see below), whose sum is σ = 119938182000. Its totient is φ = 52418655360.

The previous prime is 80825402401. The next prime is 80825402453. The reversal of 80825402439 is 93420452808.

80825402439 is a `hidden beast` number, since 8 + 0 + 82 + 540 + 24 + 3 + 9 = 666.

It is not a de Polignac number, because 80825402439 - 2⁹ = 80825401927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80825402394 and 80825402403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80825402479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185029 + ... + 442590.

It is an arithmetic number, because the mean of its divisors is an integer number (4997424250).

Almost surely, 2^80825402439 is an apocalyptic number.

80825402439 is a deficient number, since it is larger than the sum of its proper divisors (39112779561).

80825402439 is a wasteful number, since it uses less digits than its factorization.

80825402439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628015 (or 628012 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 80825402439 in words is "eighty billion, eight hundred twenty-five million, four hundred two thousand, four hundred thirty-nine".