4015400043012 has 12 divisors (see below), whose sum is σ = 9369266767056. Its totient is φ = 1338466681000.

The previous prime is 4015400042999. The next prime is 4015400043013. The reversal of 4015400043012 is 2103400045104.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×4015400043012² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4015400043013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167308335114 + ... + 167308335137.

It is an arithmetic number, because the mean of its divisors is an integer number (780772230588).

Almost surely, 2^{4015400043012} is an apocalyptic number.

It is an amenable number.

4015400043012 is an abundant number, since it is smaller than the sum of its proper divisors (5353866724044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4015400043012 is a wasteful number, since it uses less digits than its factorization.

4015400043012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334616670258 (or 334616670256 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 4015400043012 its reverse (2103400045104), we get a palindrome (6118800088116).

The spelling of 4015400043012 in words is "four trillion, fifteen billion, four hundred million, forty-three thousand, twelve".