75552463845 has 24 divisors (see below), whose sum is σ = 131042050776. Its totient is φ = 40268663808.

The previous prime is 75552463801. The next prime is 75552463913. The reversal of 75552463845 is 54836425557.

75552463845 is a `hidden beast` number, since 7 + 5 + 552 + 4 + 6 + 3 + 84 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5366148516 + 70186315329 = 73254^2 + 264927^2 .

It is not a de Polignac number, because 75552463845 - 2¹³ = 75552455653 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 75552463791 and 75552463800.

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, 470664 + ... + 610433.

It is an arithmetic number, because the mean of its divisors is an integer number (5460085449).

Almost surely, 2^75552463845 is an apocalyptic number.

It is an amenable number.

75552463845 is a deficient number, since it is larger than the sum of its proper divisors (55489586931).

75552463845 is a wasteful number, since it uses less digits than its factorization.

75552463845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082661 (or 1082658 counting only the distinct ones).

The product of its digits is 20160000, while the sum is 54.

The spelling of 75552463845 in words is "seventy-five billion, five hundred fifty-two million, four hundred sixty-three thousand, eight hundred forty-five".