400526446640545 has 16 divisors (see below), whose sum is σ = 481172403329280. Its totient is φ = 320060731536000.

The previous prime is 400526446640497. The next prime is 400526446640591. The reversal of 400526446640545 is 545046644625004.

It is not a de Polignac number, because 400526446640545 - 2²³ = 400526438251937 is a prime.

It is a super-2 number, since 2×400526446640545² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169039270 + ... + 171392320.

It is an arithmetic number, because the mean of its divisors is an integer number (30073275208080).

Almost surely, 2^{400526446640545} is an apocalyptic number.

It is an amenable number.

400526446640545 is a deficient number, since it is larger than the sum of its proper divisors (80645956688735).

400526446640545 is a wasteful number, since it uses less digits than its factorization.

400526446640545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391336.

The product of its (nonzero) digits is 55296000, while the sum is 55.

The spelling of 400526446640545 in words is "four hundred trillion, five hundred twenty-six billion, four hundred forty-six million, six hundred forty thousand, five hundred forty-five".