83005780755 has 16 divisors (see below), whose sum is σ = 132986110464. Its totient is φ = 44210796000.

The previous prime is 83005780751. The next prime is 83005780763. The reversal of 83005780755 is 55708750038.

It is a happy number.

It is not a de Polignac number, because 83005780755 - 2² = 83005780751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83005780751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3672969 + ... + 3695498.

It is an arithmetic number, because the mean of its divisors is an integer number (8311631904).

Almost surely, 2^83005780755 is an apocalyptic number.

83005780755 is a deficient number, since it is larger than the sum of its proper divisors (49980329709).

83005780755 is a wasteful number, since it uses less digits than its factorization.

83005780755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7369226.

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 83005780755 in words is "eighty-three billion, five million, seven hundred eighty thousand, seven hundred fifty-five".