51454309696 has 56 divisors (see below), whose sum is σ = 105794799840. Its totient is φ = 24813814272.

The previous prime is 51454309667. The next prime is 51454309721. The reversal of 51454309696 is 69690345415.

It is a happy number.

It is a super-3 number, since 3×51454309696³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71575 + ... + 328681.

Almost surely, 2^51454309696 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 51454309696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52897399920).

51454309696 is an abundant number, since it is smaller than the sum of its proper divisors (54340490144).

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

51454309696 is a wasteful number, since it uses less digits than its factorization.

51454309696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257231 (or 257221 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 52.

The spelling of 51454309696 in words is "fifty-one billion, four hundred fifty-four million, three hundred nine thousand, six hundred ninety-six".