82804145757 has 4 divisors (see below), whose sum is σ = 110405527680. Its totient is φ = 55202763836.

The previous prime is 82804145731. The next prime is 82804145771. The reversal of 82804145757 is 75754140828.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82804145757 - 2¹⁹ = 82803621469 is a prime.

It is a super-2 number, since 2×82804145757² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82804145777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13800690957 + ... + 13800690962.

It is an arithmetic number, because the mean of its divisors is an integer number (27601381920).

Almost surely, 2^82804145757 is an apocalyptic number.

It is an amenable number.

82804145757 is a deficient number, since it is larger than the sum of its proper divisors (27601381923).

82804145757 is a wasteful number, since it uses less digits than its factorization.

82804145757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27601381922.

The product of its (nonzero) digits is 2508800, while the sum is 51.

The spelling of 82804145757 in words is "eighty-two billion, eight hundred four million, one hundred forty-five thousand, seven hundred fifty-seven".