51420108365672 has 32 divisors (see below), whose sum is σ = 100617650236800. Its totient is φ = 24589025866944.

The previous prime is 51420108365663. The next prime is 51420108365677. The reversal of 51420108365672 is 27656380102415.

51420108365672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×51420108365672³ (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51420108365672.

It is not an unprimeable number, because it can be changed into a prime (51420108365677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16762847 + ... + 19591662.

It is an arithmetic number, because the mean of its divisors is an integer number (3144301569900).

Almost surely, 2^{51420108365672} is an apocalyptic number.

It is an amenable number.

51420108365672 is a deficient number, since it is larger than the sum of its proper divisors (49197541871128).

51420108365672 is a wasteful number, since it uses less digits than its factorization.

51420108365672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36362225 (or 36362221 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 51420108365672 in words is "fifty-one trillion, four hundred twenty billion, one hundred eight million, three hundred sixty-five thousand, six hundred seventy-two".