400205025132454 has 4 divisors (see below), whose sum is σ = 600307537698684. Its totient is φ = 200102512566226.

The previous prime is 400205025132427. The next prime is 400205025132551. The reversal of 400205025132454 is 454231520502004.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100051256283112 + ... + 100051256283115.

It is an arithmetic number, because the mean of its divisors is an integer number (150076884424671).

Almost surely, 2^{400205025132454} is an apocalyptic number.

400205025132454 is a deficient number, since it is larger than the sum of its proper divisors (200102512566230).

400205025132454 is a wasteful number, since it uses less digits than its factorization.

400205025132454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200102512566229.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 400205025132454 its reverse (454231520502004), we get a palindrome (854436545634458).

The spelling of 400205025132454 in words is "four hundred trillion, two hundred five billion, twenty-five million, one hundred thirty-two thousand, four hundred fifty-four".