357253657849 has 27 divisors (see below), whose sum is σ = 399124339173. Its totient is φ = 319534162200.

The previous prime is 357253657841. The next prime is 357253657853. The reversal of 357253657849 is 948756352753.

It is a happy number.

The square root of 357253657849 is 597707.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 357253657849 - 2³ = 357253657841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (357253657841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 440509654 + ... + 440510464.

Almost surely, 2^357253657849 is an apocalyptic number.

357253657849 is the 597707-th square number.

357253657849 is the 298854-th centered octagonal number.

It is an amenable number.

357253657849 is a deficient number, since it is larger than the sum of its proper divisors (41870681324).

357253657849 is an frugal number, since it uses more digits than its factorization.

357253657849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 889 counting only the distinct ones).

The product of its digits is 190512000, while the sum is 64.

Multiplying 357253657849 by its sum of digits (64), we get a square (22864234102336 = 4781656²).

The spelling of 357253657849 in words is "three hundred fifty-seven billion, two hundred fifty-three million, six hundred fifty-seven thousand, eight hundred forty-nine".