400524661365052 has 96 divisors (see below), whose sum is σ = 842282800128000. Its totient is φ = 162932133524160.

The previous prime is 400524661365041. The next prime is 400524661365107. The reversal of 400524661365052 is 250563166425004.

It is a junction number, because it is equal to n+sod(n) for n = 400524661364987 and 400524661365005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5441356833 + ... + 5441430439.

It is an arithmetic number, because the mean of its divisors is an integer number (8773779168000).

Almost surely, 2^{400524661365052} 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 400524661365052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421141400064000).

400524661365052 is an abundant number, since it is smaller than the sum of its proper divisors (441758138762948).

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

400524661365052 is a wasteful number, since it uses less digits than its factorization.

400524661365052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138271 (or 138269 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 400524661365052 in words is "four hundred trillion, five hundred twenty-four billion, six hundred sixty-one million, three hundred sixty-five thousand, fifty-two".