431051928640 has 112 divisors (see below), whose sum is σ = 1031075318592. Its totient is φ = 171644368896.

The previous prime is 431051928631. The next prime is 431051928649. The reversal of 431051928640 is 46829150134.

It is an interprime number because it is at equal distance from previous prime (431051928631) and next prime (431051928649).

It is not an unprimeable number, because it can be changed into a prime (431051928649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69487779 + ... + 69493981.

Almost surely, 2^431051928640 is an apocalyptic number.

431051928640 is a gapful number since it is divisible by the number (40) 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 431051928640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (515537659296).

431051928640 is an abundant number, since it is smaller than the sum of its proper divisors (600023389952).

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

431051928640 is a wasteful number, since it uses less digits than its factorization.

431051928640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7164 (or 7154 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 431051928640 in words is "four hundred thirty-one billion, fifty-one million, nine hundred twenty-eight thousand, six hundred forty".