82505291042 has 8 divisors (see below), whose sum is σ = 124702654032. Its totient is φ = 40937739700.

The previous prime is 82505291039. The next prime is 82505291059. The reversal of 82505291042 is 24019250528.

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

It is a super-3 number, since 3×82505291042³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82505290987 and 82505291005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157452584 + ... + 157453107.

It is an arithmetic number, because the mean of its divisors is an integer number (15587831754).

Almost surely, 2^82505291042 is an apocalyptic number.

82505291042 is a deficient number, since it is larger than the sum of its proper divisors (42197362990).

82505291042 is a wasteful number, since it uses less digits than its factorization.

82505291042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314905824.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 82505291042 in words is "eighty-two billion, five hundred five million, two hundred ninety-one thousand, forty-two".