471723787820 has 24 divisors (see below), whose sum is σ = 1042757847600. Its totient is φ = 178758487872.

The previous prime is 471723787793. The next prime is 471723787919. The reversal of 471723787820 is 28787327174.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620688815 + ... + 620689574.

It is an arithmetic number, because the mean of its divisors is an integer number (43448243650).

Almost surely, 2^471723787820 is an apocalyptic number.

It is an amenable number.

471723787820 is an abundant number, since it is smaller than the sum of its proper divisors (571034059780).

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

471723787820 is a wasteful number, since it uses less digits than its factorization.

471723787820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241378417 (or 1241378415 counting only the distinct ones).

The product of its (nonzero) digits is 7375872, while the sum is 56.

The spelling of 471723787820 in words is "four hundred seventy-one billion, seven hundred twenty-three million, seven hundred eighty-seven thousand, eight hundred twenty".