51846917445 has 24 divisors (see below), whose sum is σ = 89873452032. Its totient is φ = 27650008800.

The previous prime is 51846917393. The next prime is 51846917453. The reversal of 51846917445 is 54471964815.

51846917445 is a `hidden beast` number, since 5 + 1 + 8 + 469 + 174 + 4 + 5 = 666.

It is not a de Polignac number, because 51846917445 - 2¹⁴ = 51846901061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51846917391 and 51846917400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1167600 + ... + 1211190.

It is an arithmetic number, because the mean of its divisors is an integer number (3744727168).

Almost surely, 2^51846917445 is an apocalyptic number.

It is an amenable number.

51846917445 is a deficient number, since it is larger than the sum of its proper divisors (38026534587).

51846917445 is a wasteful number, since it uses less digits than its factorization.

51846917445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70033 (or 70030 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 51846917445 in words is "fifty-one billion, eight hundred forty-six million, nine hundred seventeen thousand, four hundred forty-five".