42351545245 has 4 divisors (see below), whose sum is σ = 50821854300. Its totient is φ = 33881236192.

The previous prime is 42351545237. The next prime is 42351545267. The reversal of 42351545245 is 54254515324.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9446673636 + 32904871609 = 97194^2 + 181397^2 .

It is a cyclic number.

It is not a de Polignac number, because 42351545245 - 2³ = 42351545237 is a prime.

It is a super-2 number, since 2×42351545245² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42351545198 and 42351545207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4235154520 + ... + 4235154529.

It is an arithmetic number, because the mean of its divisors is an integer number (12705463575).

Almost surely, 2^42351545245 is an apocalyptic number.

It is an amenable number.

42351545245 is a deficient number, since it is larger than the sum of its proper divisors (8470309055).

42351545245 is an equidigital number, since it uses as much as digits as its factorization.

42351545245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470309054.

The product of its digits is 480000, while the sum is 40.

The spelling of 42351545245 in words is "forty-two billion, three hundred fifty-one million, five hundred forty-five thousand, two hundred forty-five".