51876745536 has 224 divisors, whose sum is σ = 171320813568. Its totient is φ = 13459138560.

The previous prime is 51876745523. The next prime is 51876745553. The reversal of 51876745536 is 63554767815.

It is a tau number, because it is divible by the number of its divisors (224).

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, 19262206 + ... + 19264898.

Almost surely, 2^51876745536 is an apocalyptic number.

51876745536 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 51876745536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85660406784).

51876745536 is an abundant number, since it is smaller than the sum of its proper divisors (119444068032).

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

51876745536 is a wasteful number, since it uses less digits than its factorization.

51876745536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029 (or 4019 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 57.

The spelling of 51876745536 in words is "fifty-one billion, eight hundred seventy-six million, seven hundred forty-five thousand, five hundred thirty-six".