6723520020400 has 60 divisors (see below), whose sum is σ = 16156290899952. Its totient is φ = 2688902859520.

The previous prime is 6723520020379. The next prime is 6723520020443. The reversal of 6723520020400 is 40200253276.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 557277 + ... + 3709123.

Almost surely, 2^{6723520020400} is an apocalyptic number.

It is an amenable number.

6723520020400 is an abundant number, since it is smaller than the sum of its proper divisors (9432770879552).

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

6723520020400 is a wasteful number, since it uses less digits than its factorization.

6723520020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157198 (or 3157187 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 6723520020400 its reverse (40200253276), we get a palindrome (6763720273676).

The spelling of 6723520020400 in words is "six trillion, seven hundred twenty-three billion, five hundred twenty million, twenty thousand, four hundred".