829215133057 has 4 divisors (see below), whose sum is σ = 829217184516. Its totient is φ = 829213081600.

The previous prime is 829215133001. The next prime is 829215133069. The reversal of 829215133057 is 750331512928.

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 181647292401 + 647567840656 = 426201^2 + 804716^2 .

It is a cyclic number.

It is not a de Polignac number, because 829215133057 - 2¹⁵ = 829215100289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 829215132998 and 829215133016.

It is not an unprimeable number, because it can be changed into a prime (829215133457) 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, 195328 + ... + 1302529.

It is an arithmetic number, because the mean of its divisors is an integer number (207304296129).

Almost surely, 2^829215133057 is an apocalyptic number.

It is an amenable number.

829215133057 is a deficient number, since it is larger than the sum of its proper divisors (2051459).

829215133057 is a wasteful number, since it uses less digits than its factorization.

829215133057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051458.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 829215133057 in words is "eight hundred twenty-nine billion, two hundred fifteen million, one hundred thirty-three thousand, fifty-seven".