85280352783 has 16 divisors (see below), whose sum is σ = 114437596416. Its totient is φ = 56489509440.

The previous prime is 85280352767. The next prime is 85280352841. The reversal of 85280352783 is 38725308258.

It is a Cunningham number, because it is equal to 292028²-1.

It is not a de Polignac number, because 85280352783 - 2⁴ = 85280352767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85280352733) 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, 146016 + ... + 438042.

It is an arithmetic number, because the mean of its divisors is an integer number (7152349776).

Almost surely, 2^85280352783 is an apocalyptic number.

85280352783 is a deficient number, since it is larger than the sum of its proper divisors (29157243633).

85280352783 is a wasteful number, since it uses less digits than its factorization.

85280352783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292654.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 85280352783 in words is "eighty-five billion, two hundred eighty million, three hundred fifty-two thousand, seven hundred eighty-three".