51320667036 has 12 divisors (see below), whose sum is σ = 119748223112. Its totient is φ = 17106889008.

The previous prime is 51320667031. The next prime is 51320667077. The reversal of 51320667036 is 63076602315.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 51320666985 and 51320667003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51320667031) 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 3 ways as a sum of consecutive naturals, for example, 2138361115 + ... + 2138361138.

Almost surely, 2^51320667036 is an apocalyptic number.

It is an amenable number.

51320667036 is an abundant number, since it is smaller than the sum of its proper divisors (68427556076).

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

51320667036 is a wasteful number, since it uses less digits than its factorization.

51320667036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276722260 (or 4276722258 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 39.

The spelling of 51320667036 in words is "fifty-one billion, three hundred twenty million, six hundred sixty-seven thousand, thirty-six".