83980425205 has 16 divisors (see below), whose sum is σ = 105629690880. Its totient is φ = 63975086208.

The previous prime is 83980425197. The next prime is 83980425233. The reversal of 83980425205 is 50252408938.

It is a cyclic number.

It is not a de Polignac number, because 83980425205 - 2³ = 83980425197 is a prime.

It is a super-2 number, since 2×83980425205² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611720 + ... + 1663009.

It is an arithmetic number, because the mean of its divisors is an integer number (6601855680).

Almost surely, 2^83980425205 is an apocalyptic number.

It is an amenable number.

83980425205 is a deficient number, since it is larger than the sum of its proper divisors (21649265675).

83980425205 is a wasteful number, since it uses less digits than its factorization.

83980425205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3274980.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 83980425205 in words is "eighty-three billion, nine hundred eighty million, four hundred twenty-five thousand, two hundred five".