400138272293750 has 96 divisors (see below), whose sum is σ = 758944171964160. Its totient is φ = 158193604800000.

The previous prime is 400138272293699. The next prime is 400138272293849. The reversal of 400138272293750 is 57392272831004.

It is a super-2 number, since 2×400138272293750² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400138272293692 and 400138272293701.

It is a congruent number.

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, 1402163579 + ... + 1402448921.

It is an arithmetic number, because the mean of its divisors is an integer number (7905668457960).

Almost surely, 2^{400138272293750} is an apocalyptic number.

400138272293750 is a deficient number, since it is larger than the sum of its proper divisors (358805899670410).

400138272293750 is an equidigital number, since it uses as much as digits as its factorization.

400138272293750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287980 (or 287960 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 400138272293750 in words is "four hundred trillion, one hundred thirty-eight billion, two hundred seventy-two million, two hundred ninety-three thousand, seven hundred fifty".