22751072457 has 4 divisors (see below), whose sum is σ = 30334763280. Its totient is φ = 15167381636.

The previous prime is 22751072447. The next prime is 22751072459. The reversal of 22751072457 is 75427015722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22751072457 - 2¹⁶ = 22751006921 is a prime.

It is a super-2 number, since 2×22751072457² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22751072459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3791845407 + ... + 3791845412.

It is an arithmetic number, because the mean of its divisors is an integer number (7583690820).

Almost surely, 2^22751072457 is an apocalyptic number.

It is an amenable number.

22751072457 is a deficient number, since it is larger than the sum of its proper divisors (7583690823).

22751072457 is an equidigital number, since it uses as much as digits as its factorization.

22751072457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583690822.

The product of its (nonzero) digits is 274400, while the sum is 42.

The spelling of 22751072457 in words is "twenty-two billion, seven hundred fifty-one million, seventy-two thousand, four hundred fifty-seven".