830942344969511 has 4 divisors (see below), whose sum is σ = 851209231432224. Its totient is φ = 810675458506800.

The previous prime is 830942344969507. The next prime is 830942344969547. The reversal of 830942344969511 is 115969443249038.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 830942344969511 - 2² = 830942344969507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830942344909511) 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, 10133443231295 + ... + 10133443231376.

It is an arithmetic number, because the mean of its divisors is an integer number (212802307858056).

Almost surely, 2^{830942344969511} is an apocalyptic number.

830942344969511 is a deficient number, since it is larger than the sum of its proper divisors (20266886462713).

830942344969511 is a wasteful number, since it uses less digits than its factorization.

830942344969511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20266886462712.

The product of its (nonzero) digits is 201553920, while the sum is 68.

The spelling of 830942344969511 in words is "eight hundred thirty trillion, nine hundred forty-two billion, three hundred forty-four million, nine hundred sixty-nine thousand, five hundred eleven".