451703487720 has 32 divisors (see below), whose sum is σ = 1355110463520. Its totient is φ = 120454263360.

The previous prime is 451703487713. The next prime is 451703487721. The reversal of 451703487720 is 27784307154.

It is a self number, because there is not a number n which added to its sum of digits gives 451703487720.

It is not an unprimeable number, because it can be changed into a prime (451703487721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1882097746 + ... + 1882097985.

It is an arithmetic number, because the mean of its divisors is an integer number (42347201985).

Almost surely, 2^451703487720 is an apocalyptic number.

451703487720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451703487720 is an abundant number, since it is smaller than the sum of its proper divisors (903406975800).

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

451703487720 is a wasteful number, since it uses less digits than its factorization.

451703487720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764195745 (or 3764195741 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 48.

The spelling of 451703487720 in words is "four hundred fifty-one billion, seven hundred three million, four hundred eighty-seven thousand, seven hundred twenty".