51354265013240 has 192 divisors, whose sum is σ = 135167205569760. Its totient is φ = 17508319395840.

The previous prime is 51354265013239. The next prime is 51354265013257. The reversal of 51354265013240 is 4231056245315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 905195675 + ... + 905252405.

Almost surely, 2^{51354265013240} 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 51354265013240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67583602784880).

51354265013240 is an abundant number, since it is smaller than the sum of its proper divisors (83812940556520).

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

51354265013240 is a wasteful number, since it uses less digits than its factorization.

51354265013240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59342 (or 59331 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 51354265013240 in words is "fifty-one trillion, three hundred fifty-four billion, two hundred sixty-five million, thirteen thousand, two hundred forty".