75271224002 has 18 divisors (see below), whose sum is σ = 122268258297. Its totient is φ = 34738236936.

The previous prime is 75271223971. The next prime is 75271224053. The reversal of 75271224002 is 20042217257.

It can be written as a sum of positive squares in 2 ways, for example, as 64359123481 + 10912100521 = 253691^2 + 104461^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=193999.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75271224002.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5036513 + ... + 5051435.

Almost surely, 2^75271224002 is an apocalyptic number.

75271224002 is a deficient number, since it is larger than the sum of its proper divisors (46997034295).

75271224002 is an frugal number, since it uses more digits than its factorization.

75271224002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29874 (or 14938 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

Multiplying 75271224002 by its sum of digits (32), we get a square (2408679168064 = 1551992²).

The spelling of 75271224002 in words is "seventy-five billion, two hundred seventy-one million, two hundred twenty-four thousand, two".