51677774036 has 48 divisors (see below), whose sum is σ = 109145487360. Its totient is φ = 20914420320.

The previous prime is 51677774023. The next prime is 51677774041. The reversal of 51677774036 is 63047777615.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9281 + ... + 321623.

It is an arithmetic number, because the mean of its divisors is an integer number (2273864320).

Almost surely, 2^51677774036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51677774036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54572743680).

51677774036 is an abundant number, since it is smaller than the sum of its proper divisors (57467713324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51677774036 is a wasteful number, since it uses less digits than its factorization.

51677774036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312684 (or 312682 counting only the distinct ones).

The product of its (nonzero) digits is 5186160, while the sum is 53.

The spelling of 51677774036 in words is "fifty-one billion, six hundred seventy-seven million, seven hundred seventy-four thousand, thirty-six".