823937250972 has 72 divisors (see below), whose sum is σ = 2227922282880. Its totient is φ = 234991005440.

The previous prime is 823937250967. The next prime is 823937250979. The reversal of 823937250972 is 279052739328.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823937250979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10761072 + ... + 10837367.

It is an arithmetic number, because the mean of its divisors is an integer number (30943365040).

Almost surely, 2^823937250972 is an apocalyptic number.

It is an amenable number.

823937250972 is an abundant number, since it is smaller than the sum of its proper divisors (1403985031908).

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

823937250972 is a wasteful number, since it uses less digits than its factorization.

823937250972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21598491 (or 21598472 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 823937250972 in words is "eight hundred twenty-three billion, nine hundred thirty-seven million, two hundred fifty thousand, nine hundred seventy-two".