15212132342404 has 12 divisors (see below), whose sum is σ = 26626053451228. Its totient is φ = 7604688499200.

The previous prime is 15212132342389. The next prime is 15212132342447. The reversal of 15212132342404 is 40424323121251.

It can be written as a sum of positive squares in 2 ways, for example, as 3512325774400 + 11699806568004 = 1874120^2 + 3420498^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 15212132342404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344393157 + ... + 344437324.

Almost surely, 2^{15212132342404} is an apocalyptic number.

It is an amenable number.

15212132342404 is a deficient number, since it is larger than the sum of its proper divisors (11413921108824).

15212132342404 is a wasteful number, since it uses less digits than its factorization.

15212132342404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688836006 (or 688836004 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 15212132342404 its reverse (40424323121251), we get a palindrome (55636455463655).

The spelling of 15212132342404 in words is "fifteen trillion, two hundred twelve billion, one hundred thirty-two million, three hundred forty-two thousand, four hundred four".