157844227045 has 4 divisors (see below), whose sum is σ = 189413072460. Its totient is φ = 126275381632.

The previous prime is 157844227003. The next prime is 157844227069. The reversal of 157844227045 is 540722448751.

157844227045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 54334677604 + 103509549441 = 233098^2 + 321729^2 .

It is a cyclic number.

It is not a de Polignac number, because 157844227045 - 2¹⁷ = 157844095973 is a prime.

It is a super-2 number, since 2×157844227045² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157844227045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15784422700 + ... + 15784422709.

It is an arithmetic number, because the mean of its divisors is an integer number (47353268115).

Almost surely, 2^157844227045 is an apocalyptic number.

It is an amenable number.

157844227045 is a deficient number, since it is larger than the sum of its proper divisors (31568845415).

157844227045 is an equidigital number, since it uses as much as digits as its factorization.

157844227045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31568845414.

The product of its (nonzero) digits is 2508800, while the sum is 49.

The spelling of 157844227045 in words is "one hundred fifty-seven billion, eight hundred forty-four million, two hundred twenty-seven thousand, forty-five".