823154423052 has 48 divisors (see below), whose sum is σ = 2079867232352. Its totient is φ = 251878947840.

The previous prime is 823154423041. The next prime is 823154423101. The reversal of 823154423052 is 250324451328.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 823154423052.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14548093 + ... + 14604564.

Almost surely, 2^823154423052 is an apocalyptic number.

It is an amenable number.

823154423052 is an abundant number, since it is smaller than the sum of its proper divisors (1256712809300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823154423052 is a wasteful number, since it uses less digits than its factorization.

823154423052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29152858 (or 29152856 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 823154423052 in words is "eight hundred twenty-three billion, one hundred fifty-four million, four hundred twenty-three thousand, fifty-two".