51982345826 has 8 divisors (see below), whose sum is σ = 79632529920. Its totient is φ = 25438169188.

The previous prime is 51982345823. The next prime is 51982345897. The reversal of 51982345826 is 62854328915.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51982345823) 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, 276501746 + ... + 276501933.

It is an arithmetic number, because the mean of its divisors is an integer number (9954066240).

Almost surely, 2^51982345826 is an apocalyptic number.

51982345826 is a deficient number, since it is larger than the sum of its proper divisors (27650184094).

51982345826 is a wasteful number, since it uses less digits than its factorization.

51982345826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553003728.

The product of its digits is 4147200, while the sum is 53.

The spelling of 51982345826 in words is "fifty-one billion, nine hundred eighty-two million, three hundred forty-five thousand, eight hundred twenty-six".