51445636404652 has 96 divisors (see below), whose sum is σ = 109824602025600. Its totient is φ = 20583770664960.

The previous prime is 51445636404649. The next prime is 51445636404731. The reversal of 51445636404652 is 25640463654415.

51445636404652 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-2 number, since 2×51445636404652² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51445636404593 and 51445636404602.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 51492502 + ... + 52482082.

It is an arithmetic number, because the mean of its divisors is an integer number (1144006271100).

Almost surely, 2^{51445636404652} 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 51445636404652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54912301012800).

51445636404652 is an abundant number, since it is smaller than the sum of its proper divisors (58378965620948).

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

51445636404652 is a wasteful number, since it uses less digits than its factorization.

51445636404652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990491 (or 990489 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 55.

The spelling of 51445636404652 in words is "fifty-one trillion, four hundred forty-five billion, six hundred thirty-six million, four hundred four thousand, six hundred fifty-two".