1521452412404 has 6 divisors (see below), whose sum is σ = 2662541721714. Its totient is φ = 760726206200.

The previous prime is 1521452412379. The next prime is 1521452412457. The reversal of 1521452412404 is 4042142541251.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1116699427600 + 404752984804 = 1056740^2 + 636202^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190181551547 + ... + 190181551554.

It is an arithmetic number, because the mean of its divisors is an integer number (443756953619).

Almost surely, 2^{1521452412404} is an apocalyptic number.

It is an amenable number.

1521452412404 is a deficient number, since it is larger than the sum of its proper divisors (1141089309310).

1521452412404 is a wasteful number, since it uses less digits than its factorization.

1521452412404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380363103105 (or 380363103103 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 35.

Adding to 1521452412404 its reverse (4042142541251), we get a palindrome (5563594953655).

The spelling of 1521452412404 in words is "one trillion, five hundred twenty-one billion, four hundred fifty-two million, four hundred twelve thousand, four hundred four".