73851057745 has 4 divisors (see below), whose sum is σ = 88621269300. Its totient is φ = 59080846192.

The previous prime is 73851057701. The next prime is 73851057793. The reversal of 73851057745 is 54775015837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54775015837 = 11633 ⋅4708589.

It can be written as a sum of positive squares in 2 ways, for example, as 44126884096 + 29724173649 = 210064^2 + 172407^2 .

It is a cyclic number.

It is not a de Polignac number, because 73851057745 - 2¹⁵ = 73851024977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73851057692 and 73851057701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7385105770 + ... + 7385105779.

It is an arithmetic number, because the mean of its divisors is an integer number (22155317325).

Almost surely, 2^73851057745 is an apocalyptic number.

It is an amenable number.

73851057745 is a deficient number, since it is larger than the sum of its proper divisors (14770211555).

73851057745 is a wasteful number, since it uses less digits than its factorization.

73851057745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14770211554.

The product of its (nonzero) digits is 4116000, while the sum is 52.

The spelling of 73851057745 in words is "seventy-three billion, eight hundred fifty-one million, fifty-seven thousand, seven hundred forty-five".