15400540223012 has 48 divisors (see below), whose sum is σ = 30895781038080. Its totient is φ = 6579940672800.

The previous prime is 15400540223009. The next prime is 15400540223023. The reversal of 15400540223012 is 21032204500451.

15400540223012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15400540223012² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250307189 + ... + 250368707.

It is an arithmetic number, because the mean of its divisors is an integer number (643662104960).

Almost surely, 2^{15400540223012} is an apocalyptic number.

It is an amenable number.

15400540223012 is an abundant number, since it is smaller than the sum of its proper divisors (15495240815068).

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

15400540223012 is a wasteful number, since it uses less digits than its factorization.

15400540223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88872 (or 88870 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 15400540223012 its reverse (21032204500451), we get a palindrome (36432744723463).

The spelling of 15400540223012 in words is "fifteen trillion, four hundred billion, five hundred forty million, two hundred twenty-three thousand, twelve".