521400410010 has 96 divisors (see below), whose sum is σ = 1391607959040. Its totient is φ = 135399423744.

The previous prime is 521400409991. The next prime is 521400410057. The reversal of 521400410010 is 10014004125.

521400410010 is a `hidden beast` number, since 521 + 40 + 0 + 4 + 100 + 1 + 0 = 666.

It is a super-2 number, since 2×521400410010² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16747 + ... + 1021313.

It is an arithmetic number, because the mean of its divisors is an integer number (14495916240).

Almost surely, 2^521400410010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521400410010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695803979520).

521400410010 is an abundant number, since it is smaller than the sum of its proper divisors (870207549030).

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

521400410010 is a wasteful number, since it uses less digits than its factorization.

521400410010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004732 (or 1004729 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 521400410010 its reverse (10014004125), we get a palindrome (531414414135).

The spelling of 521400410010 in words is "five hundred twenty-one billion, four hundred million, four hundred ten thousand, ten".