471902107992 has 128 divisors (see below), whose sum is σ = 1394588482560. Its totient is φ = 130263367680.

The previous prime is 471902107981. The next prime is 471902108003. The reversal of 471902107992 is 299701209174.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (471902107981) and next prime (471902108003).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 376888 + ... + 1042040.

It is an arithmetic number, because the mean of its divisors is an integer number (10895222520).

Almost surely, 2^471902107992 is an apocalyptic number.

471902107992 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 471902107992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697294241280).

471902107992 is an abundant number, since it is smaller than the sum of its proper divisors (922686374568).

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

471902107992 is a wasteful number, since it uses less digits than its factorization.

471902107992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665313 (or 665309 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 51.

The spelling of 471902107992 in words is "four hundred seventy-one billion, nine hundred two million, one hundred seven thousand, nine hundred ninety-two".