51434003808 has 192 divisors, whose sum is σ = 172267603200. Its totient is φ = 14765690880.

The previous prime is 51434003791. The next prime is 51434003821. The reversal of 51434003808 is 80830043415.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38160 + ... + 322992.

It is an arithmetic number, because the mean of its divisors is an integer number (897227100).

Almost surely, 2^51434003808 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 51434003808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86133801600).

51434003808 is an abundant number, since it is smaller than the sum of its proper divisors (120833599392).

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

51434003808 is a wasteful number, since it uses less digits than its factorization.

51434003808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284882 (or 284868 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 51434003808 in words is "fifty-one billion, four hundred thirty-four million, three thousand, eight hundred eight".