400506142535210 has 16 divisors (see below), whose sum is σ = 720911286961416. Its totient is φ = 160202405814528.

The previous prime is 400506142535197. The next prime is 400506142535297. The reversal of 400506142535210 is 12535241605004.

It can be written as a sum of positive squares in 4 ways, for example, as 318979635720001 + 81526506815209 = 17860001^2 + 9029203^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50790374 + ... + 58143566.

Almost surely, 2^{400506142535210} is an apocalyptic number.

400506142535210 is a deficient number, since it is larger than the sum of its proper divisors (320405144426206).

400506142535210 is a wasteful number, since it uses less digits than its factorization.

400506142535210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12799897.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 400506142535210 in words is "four hundred trillion, five hundred six billion, one hundred forty-two million, five hundred thirty-five thousand, two hundred ten".