45117629857 has 4 divisors (see below), whose sum is σ = 45118349460. Its totient is φ = 45116910256.

The previous prime is 45117629833. The next prime is 45117629873. The reversal of 45117629857 is 75892671154.

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 22212623521 + 22905006336 = 149039^2 + 151344^2 .

It is a cyclic number.

It is not a de Polignac number, because 45117629857 - 2¹¹ = 45117627809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45117629798 and 45117629807.

It is not an unprimeable number, because it can be changed into a prime (45117627857) 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, 255718 + ... + 394495.

It is an arithmetic number, because the mean of its divisors is an integer number (11279587365).

Almost surely, 2^45117629857 is an apocalyptic number.

It is an amenable number.

45117629857 is a deficient number, since it is larger than the sum of its proper divisors (719603).

45117629857 is an equidigital number, since it uses as much as digits as its factorization.

45117629857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719602.

The product of its digits is 4233600, while the sum is 55.

The spelling of 45117629857 in words is "forty-five billion, one hundred seventeen million, six hundred twenty-nine thousand, eight hundred fifty-seven".