51073740016 has 320 divisors, whose sum is σ = 123314607360. Its totient is φ = 20313047040.

The previous prime is 51073740013. The next prime is 51073740017. The reversal of 51073740016 is 61004737015.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51073740013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 963655446 + ... + 963655498.

It is an arithmetic number, because the mean of its divisors is an integer number (385358148).

Almost surely, 2^51073740016 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 51073740016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61657303680).

51073740016 is an abundant number, since it is smaller than the sum of its proper divisors (72240867344).

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

51073740016 is a wasteful number, since it uses less digits than its factorization.

51073740016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The spelling of 51073740016 in words is "fifty-one billion, seventy-three million, seven hundred forty thousand, sixteen".