1521472740406 has 16 divisors (see below), whose sum is σ = 2295630305280. Its totient is φ = 756267751720.

The previous prime is 1521472740391. The next prime is 1521472740413. The reversal of 1521472740406 is 6040472741251.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681856 + ... + 1872931.

It is an arithmetic number, because the mean of its divisors is an integer number (143476894080).

Almost surely, 2^{1521472740406} is an apocalyptic number.

1521472740406 is a deficient number, since it is larger than the sum of its proper divisors (774157564874).

1521472740406 is a wasteful number, since it uses less digits than its factorization.

1521472740406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556539.

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 1521472740406 in words is "one trillion, five hundred twenty-one billion, four hundred seventy-two million, seven hundred forty thousand, four hundred six".