823542261950 has 12 divisors (see below), whose sum is σ = 1531788607320. Its totient is φ = 329416904760.

The previous prime is 823542261931. The next prime is 823542262003. The reversal of 823542261950 is 59162245328.

It is a junction number, because it is equal to n+sod(n) for n = 823542261895 and 823542261904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8235422570 + ... + 8235422669.

It is an arithmetic number, because the mean of its divisors is an integer number (127649050610).

Almost surely, 2^823542261950 is an apocalyptic number.

823542261950 is a deficient number, since it is larger than the sum of its proper divisors (708246345370).

823542261950 is a wasteful number, since it uses less digits than its factorization.

823542261950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16470845251 (or 16470845246 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 823542261950 in words is "eight hundred twenty-three billion, five hundred forty-two million, two hundred sixty-one thousand, nine hundred fifty".