51216747469152 has 96 divisors (see below), whose sum is σ = 134772507636480. Its totient is φ = 17030534653440.

The previous prime is 51216747469141. The next prime is 51216747469163. The reversal of 51216747469152 is 25196474761215.

It is an interprime number because it is at equal distance from previous prime (51216747469141) and next prime (51216747469163).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754896543 + ... + 754964385.

It is an arithmetic number, because the mean of its divisors is an integer number (1403880287880).

Almost surely, 2^{51216747469152} is an apocalyptic number.

It is an amenable number.

51216747469152 is an abundant number, since it is smaller than the sum of its proper divisors (83555760167328).

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

51216747469152 is a wasteful number, since it uses less digits than its factorization.

51216747469152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86956 (or 86948 counting only the distinct ones).

The product of its digits is 25401600, while the sum is 60.

The spelling of 51216747469152 in words is "fifty-one trillion, two hundred sixteen billion, seven hundred forty-seven million, four hundred sixty-nine thousand, one hundred fifty-two".