6723728554 has 16 divisors (see below), whose sum is σ = 10187573760. Its totient is φ = 3327896880.

The previous prime is 6723728551. The next prime is 6723728567. The reversal of 6723728554 is 4558273276.

It is a junction number, because it is equal to n+sod(n) for n = 6723728498 and 6723728507.

It is not an unprimeable number, because it can be changed into a prime (6723728551) 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, 693319 + ... + 702949.

It is an arithmetic number, because the mean of its divisors is an integer number (636723360).

Almost surely, 2^6723728554 is an apocalyptic number.

6723728554 is a deficient number, since it is larger than the sum of its proper divisors (3463845206).

6723728554 is a wasteful number, since it uses less digits than its factorization.

6723728554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13125.

The product of its digits is 2822400, while the sum is 49.

The square root of 6723728554 is about 81998.3448247585. The cubic root of 6723728554 is about 1887.4265390412.

The spelling of 6723728554 in words is "six billion, seven hundred twenty-three million, seven hundred twenty-eight thousand, five hundred fifty-four".