42957275251 has 4 divisors (see below), whose sum is σ = 46862482104. Its totient is φ = 39052068400.

The previous prime is 42957275233. The next prime is 42957275281. The reversal of 42957275251 is 15257275924.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42957275251 - 2⁵ = 42957275219 is a prime.

It is a super-2 number, since 2×42957275251² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42957275195 and 42957275204.

It is not an unprimeable number, because it can be changed into a prime (42957275281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1952603410 + ... + 1952603431.

It is an arithmetic number, because the mean of its divisors is an integer number (11715620526).

Almost surely, 2^42957275251 is an apocalyptic number.

42957275251 is a deficient number, since it is larger than the sum of its proper divisors (3905206853).

42957275251 is a wasteful number, since it uses less digits than its factorization.

42957275251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905206852.

The product of its digits is 1764000, while the sum is 49.

The spelling of 42957275251 in words is "forty-two billion, nine hundred fifty-seven million, two hundred seventy-five thousand, two hundred fifty-one".