82040638245 has 16 divisors (see below), whose sum is σ = 131299181952. Its totient is φ = 43743620160.

The previous prime is 82040638243. The next prime is 82040638261. The reversal of 82040638245 is 54283604028.

It is not a de Polignac number, because 82040638245 - 2¹ = 82040638243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82040638197 and 82040638206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82040638243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651961 + ... + 767550.

It is an arithmetic number, because the mean of its divisors is an integer number (8206198872).

Almost surely, 2^82040638245 is an apocalyptic number.

It is an amenable number.

82040638245 is a deficient number, since it is larger than the sum of its proper divisors (49258543707).

82040638245 is a wasteful number, since it uses less digits than its factorization.

82040638245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423372.

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 82040638245 in words is "eighty-two billion, forty million, six hundred thirty-eight thousand, two hundred forty-five".