51031969296 has 160 divisors (see below), whose sum is σ = 164657366016. Its totient is φ = 13231296000.

The previous prime is 51031969283. The next prime is 51031969319. The reversal of 51031969296 is 69296913015.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2098326 + ... + 2122506.

Almost surely, 2^51031969296 is an apocalyptic number.

51031969296 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51031969296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82328683008).

51031969296 is an abundant number, since it is smaller than the sum of its proper divisors (113625396720).

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

51031969296 is a wasteful number, since it uses less digits than its factorization.

51031969296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24781 (or 24775 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 51.

The spelling of 51031969296 in words is "fifty-one billion, thirty-one million, nine hundred sixty-nine thousand, two hundred ninety-six".