400350125541 has 16 divisors (see below), whose sum is σ = 561934195200. Its totient is φ = 252835033968.

The previous prime is 400350125537. The next prime is 400350125543. The reversal of 400350125541 is 145521053004.

It is not a de Polignac number, because 400350125541 - 2² = 400350125537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400350125499 and 400350125508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400350125543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602440 + ... + 1078718.

It is an arithmetic number, because the mean of its divisors is an integer number (35120887200).

Almost surely, 2^400350125541 is an apocalyptic number.

It is an amenable number.

400350125541 is a deficient number, since it is larger than the sum of its proper divisors (161584069659).

400350125541 is a wasteful number, since it uses less digits than its factorization.

400350125541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491048.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 400350125541 its reverse (145521053004), we get a palindrome (545871178545).

The spelling of 400350125541 in words is "four hundred billion, three hundred fifty million, one hundred twenty-five thousand, five hundred forty-one".