830998521853 has 2 divisors, whose sum is σ = 830998521854. Its totient is φ = 830998521852.

The previous prime is 830998521809. The next prime is 830998521869. The reversal of 830998521853 is 358125899038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606221074404 + 224777447449 = 778602^2 + 474107^2 .

It is a cyclic number.

It is not a de Polignac number, because 830998521853 - 2³³ = 822408587261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 830998521791 and 830998521800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (830998521803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415499260926 + 415499260927.

It is an arithmetic number, because the mean of its divisors is an integer number (415499260927).

Almost surely, 2^830998521853 is an apocalyptic number.

It is an amenable number.

830998521853 is a deficient number, since it is larger than the sum of its proper divisors (1).

830998521853 is an equidigital number, since it uses as much as digits as its factorization.

830998521853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18662400, while the sum is 61.

The spelling of 830998521853 in words is "eight hundred thirty billion, nine hundred ninety-eight million, five hundred twenty-one thousand, eight hundred fifty-three".