82356545438 has 4 divisors (see below), whose sum is σ = 123534818160. Its totient is φ = 41178272718.

The previous prime is 82356545429. The next prime is 82356545503. The reversal of 82356545438 is 83454565328.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×82356545438² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82356545438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20589136358 + ... + 20589136361.

It is an arithmetic number, because the mean of its divisors is an integer number (30883704540).

Almost surely, 2^82356545438 is an apocalyptic number.

82356545438 is a deficient number, since it is larger than the sum of its proper divisors (41178272722).

82356545438 is a wasteful number, since it uses less digits than its factorization.

82356545438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41178272721.

The product of its digits is 13824000, while the sum is 53.

The spelling of 82356545438 in words is "eighty-two billion, three hundred fifty-six million, five hundred forty-five thousand, four hundred thirty-eight".