80139926664252 has 288 divisors, whose sum is σ = 251940321464832. Its totient is φ = 20914480516608.

The previous prime is 80139926664227. The next prime is 80139926664269. The reversal of 80139926664252 is 25246662993108.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a self number, because there is not a number n which added to its sum of digits gives 80139926664252.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 309390298 + ... + 309649214.

It is an arithmetic number, because the mean of its divisors is an integer number (874792782864).

Almost surely, 2^{80139926664252} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80139926664252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125970160732416).

80139926664252 is an abundant number, since it is smaller than the sum of its proper divisors (171800394800580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80139926664252 is a wasteful number, since it uses less digits than its factorization.

80139926664252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259937 (or 259932 counting only the distinct ones).

The product of its (nonzero) digits is 67184640, while the sum is 63.

The spelling of 80139926664252 in words is "eighty trillion, one hundred thirty-nine billion, nine hundred twenty-six million, six hundred sixty-four thousand, two hundred fifty-two".