83210780251 has 8 divisors (see below), whose sum is σ = 84990657024. Its totient is φ = 81431296680.

The previous prime is 83210780239. The next prime is 83210780293. The reversal of 83210780251 is 15208701238.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83210780251 - 2⁷ = 83210780123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 83210780251.

It is not an unprimeable number, because it can be changed into a prime (83210783251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351216 + ... + 538306.

It is an arithmetic number, because the mean of its divisors is an integer number (10623832128).

Almost surely, 2^83210780251 is an apocalyptic number.

83210780251 is a deficient number, since it is larger than the sum of its proper divisors (1779876773).

83210780251 is a wasteful number, since it uses less digits than its factorization.

83210780251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196601.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 83210780251 in words is "eighty-three billion, two hundred ten million, seven hundred eighty thousand, two hundred fifty-one".