82575981943 has 32 divisors (see below), whose sum is σ = 105891287040. Its totient is φ = 62636129280.

The previous prime is 82575981941. The next prime is 82575981973. The reversal of 82575981943 is 34918957528.

It is a cyclic number.

It is not a de Polignac number, because 82575981943 - 2¹ = 82575981941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82575981941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165063 + ... + 438631.

It is an arithmetic number, because the mean of its divisors is an integer number (3309102720).

Almost surely, 2^82575981943 is an apocalyptic number.

82575981943 is a deficient number, since it is larger than the sum of its proper divisors (23315305097).

82575981943 is a wasteful number, since it uses less digits than its factorization.

82575981943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273727.

The product of its digits is 21772800, while the sum is 61.

The spelling of 82575981943 in words is "eighty-two billion, five hundred seventy-five million, nine hundred eighty-one thousand, nine hundred forty-three".