51122661586 has 8 divisors (see below), whose sum is σ = 76684988160. Its totient is φ = 25560998868.

The previous prime is 51122661553. The next prime is 51122661589. The reversal of 51122661586 is 68516622115.

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

It is a super-2 number, since 2×51122661586² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51122661589) 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, 137635 + ... + 348121.

It is an arithmetic number, because the mean of its divisors is an integer number (9585623520).

Almost surely, 2^51122661586 is an apocalyptic number.

51122661586 is a deficient number, since it is larger than the sum of its proper divisors (25562326574).

51122661586 is a wasteful number, since it uses less digits than its factorization.

51122661586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331928.

The product of its digits is 172800, while the sum is 43.

The spelling of 51122661586 in words is "fifty-one billion, one hundred twenty-two million, six hundred sixty-one thousand, five hundred eighty-six".