1722630004000 has 48 divisors (see below), whose sum is σ = 4232501929656. Its totient is φ = 689052000000.

The previous prime is 1722630003989. The next prime is 1722630004001. The reversal of 1722630004000 is 4000362271.

It can be written as a sum of positive squares in 4 ways, for example, as 542043447696 + 1180586556304 = 736236^2 + 1086548^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1722630004001) 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, 215324751 + ... + 215332750.

Almost surely, 2^{1722630004000} is an apocalyptic number.

1722630004000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1722630004000 is an abundant number, since it is smaller than the sum of its proper divisors (2509871925656).

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

1722630004000 is an equidigital number, since it uses as much as digits as its factorization.

1722630004000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430657526 (or 430657508 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

Adding to 1722630004000 its reverse (4000362271), we get a palindrome (1726630366271).

The spelling of 1722630004000 in words is "one trillion, seven hundred twenty-two billion, six hundred thirty million, four thousand".