40400134051 has 16 divisors (see below), whose sum is σ = 40939430400. Its totient is φ = 39865668480.

The previous prime is 40400134037. The next prime is 40400134057. The reversal of 40400134051 is 15043100404.

It is a cyclic number.

It is not a de Polignac number, because 40400134051 - 2⁹ = 40400133539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40400134057) 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, 12611616 + ... + 12614818.

It is an arithmetic number, because the mean of its divisors is an integer number (2558714400).

Almost surely, 2^40400134051 is an apocalyptic number.

40400134051 is a deficient number, since it is larger than the sum of its proper divisors (539296349).

40400134051 is a wasteful number, since it uses less digits than its factorization.

40400134051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 40400134051 its reverse (15043100404), we get a palindrome (55443234455).

The spelling of 40400134051 in words is "forty billion, four hundred million, one hundred thirty-four thousand, fifty-one".