82416237451 has 4 divisors (see below), whose sum is σ = 83232239904. Its totient is φ = 81600235000.

The previous prime is 82416237443. The next prime is 82416237457. The reversal of 82416237451 is 15473261428.

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

It is a cyclic number.

It is not a de Polignac number, because 82416237451 - 2³ = 82416237443 is a prime.

It is a super-2 number, since 2×82416237451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82416237398 and 82416237407.

It is not an unprimeable number, because it can be changed into a prime (82416237457) 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, 408001075 + ... + 408001276.

It is an arithmetic number, because the mean of its divisors is an integer number (20808059976).

Almost surely, 2^82416237451 is an apocalyptic number.

82416237451 is a deficient number, since it is larger than the sum of its proper divisors (816002453).

82416237451 is a wasteful number, since it uses less digits than its factorization.

82416237451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816002452.

The product of its digits is 322560, while the sum is 43.

Adding to 82416237451 its reverse (15473261428), we get a palindrome (97889498879).

The spelling of 82416237451 in words is "eighty-two billion, four hundred sixteen million, two hundred thirty-seven thousand, four hundred fifty-one".