400451024011125 has 16 divisors (see below), whose sum is σ = 666350503955136. Its totient is φ = 213573879472400.

The previous prime is 400451024011109. The next prime is 400451024011127. The reversal of 400451024011125 is 521110420154004.

It is not a de Polignac number, because 400451024011125 - 2⁴ = 400451024011109 is a prime.

It is a super-2 number, since 2×400451024011125² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400451024011092 and 400451024011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400451024011127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533934698307 + ... + 533934699056.

It is an arithmetic number, because the mean of its divisors is an integer number (41646906497196).

Almost surely, 2^{400451024011125} is an apocalyptic number.

It is an amenable number.

400451024011125 is a deficient number, since it is larger than the sum of its proper divisors (265899479944011).

400451024011125 is a wasteful number, since it uses less digits than its factorization.

400451024011125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067869397381 (or 1067869397371 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 400451024011125 its reverse (521110420154004), we get a palindrome (921561444165129).

The spelling of 400451024011125 in words is "four hundred trillion, four hundred fifty-one billion, twenty-four million, eleven thousand, one hundred twenty-five".