551400026752 has 64 divisors (see below), whose sum is σ = 1114311240000. Its totient is φ = 271734994944.

The previous prime is 551400026729. The next prime is 551400026753. The reversal of 551400026752 is 257620004155.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (551400026753) 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, 13986973 + ... + 14026339.

It is an arithmetic number, because the mean of its divisors is an integer number (17411113125).

Almost surely, 2^551400026752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551400026752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557155620000).

551400026752 is an abundant number, since it is smaller than the sum of its proper divisors (562911213248).

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

551400026752 is a wasteful number, since it uses less digits than its factorization.

551400026752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40953 (or 40941 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 551400026752 in words is "five hundred fifty-one billion, four hundred million, twenty-six thousand, seven hundred fifty-two".