75451362722 has 18 divisors (see below), whose sum is σ = 115895935953. Its totient is φ = 36840182232.

The previous prime is 75451362697. The next prime is 75451362743. The reversal of 75451362722 is 22726315457.

It can be written as a sum of positive squares in 2 ways, for example, as 42476797801 + 32974564921 = 206099^2 + 181589^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=194231.

It is a super-2 number, since 2×75451362722² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

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, 16701608 + ... + 16706124.

Almost surely, 2^75451362722 is an apocalyptic number.

75451362722 is a deficient number, since it is larger than the sum of its proper divisors (40444573231).

75451362722 is an frugal number, since it uses more digits than its factorization.

75451362722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122 (or 4562 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

The spelling of 75451362722 in words is "seventy-five billion, four hundred fifty-one million, three hundred sixty-two thousand, seven hundred twenty-two".