12015332774 has 32 divisors (see below), whose sum is σ = 18364041696. Its totient is φ = 5895452160.

The previous prime is 12015332761. The next prime is 12015332807. The reversal of 12015332774 is 47723351021.

It is a happy number.

It is a congruent number.

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, 9263294 + ... + 9264590.

It is an arithmetic number, because the mean of its divisors is an integer number (573876303).

Almost surely, 2^12015332774 is an apocalyptic number.

12015332774 is a deficient number, since it is larger than the sum of its proper divisors (6348708922).

12015332774 is a wasteful number, since it uses less digits than its factorization.

12015332774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800.

The product of its (nonzero) digits is 35280, while the sum is 35.

Adding to 12015332774 its reverse (47723351021), we get a palindrome (59738683795).

The spelling of 12015332774 in words is "twelve billion, fifteen million, three hundred thirty-two thousand, seven hundred seventy-four".