83722662405 has 24 divisors (see below), whose sum is σ = 145126032480. Its totient is φ = 44650009440.

The previous prime is 83722662403. The next prime is 83722662431. The reversal of 83722662405 is 50426622738.

83722662405 is a `hidden beast` number, since 83 + 72 + 266 + 240 + 5 = 666.

It is not a de Polignac number, because 83722662405 - 2¹ = 83722662403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83722662403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1766670 + ... + 1813440.

It is an arithmetic number, because the mean of its divisors is an integer number (6046918020).

Almost surely, 2^83722662405 is an apocalyptic number.

It is an amenable number.

83722662405 is a deficient number, since it is larger than the sum of its proper divisors (61403370075).

83722662405 is a wasteful number, since it uses less digits than its factorization.

83722662405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86561 (or 86558 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 83722662405 in words is "eighty-three billion, seven hundred twenty-two million, six hundred sixty-two thousand, four hundred five".