6454123625550 has 24 divisors (see below), whose sum is σ = 16006226591736. Its totient is φ = 1721099633440.

The previous prime is 6454123625519. The next prime is 6454123625629. The reversal of 6454123625550 is 555263214546.

It is a super-2 number, since 2×6454123625550² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6454123625550.

It is a congruent number.

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, 21513745269 + ... + 21513745568.

It is an arithmetic number, because the mean of its divisors is an integer number (666926107989).

Almost surely, 2^{6454123625550} is an apocalyptic number.

6454123625550 is an abundant number, since it is smaller than the sum of its proper divisors (9552102966186).

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

6454123625550 is a wasteful number, since it uses less digits than its factorization.

6454123625550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43027490852 (or 43027490847 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 6454123625550 in words is "six trillion, four hundred fifty-four billion, one hundred twenty-three million, six hundred twenty-five thousand, five hundred fifty".