1521471882945 has 16 divisors (see below), whose sum is σ = 2782120014720. Its totient is φ = 695530003584.

The previous prime is 1521471882907. The next prime is 1521471882967. The reversal of 1521471882945 is 5492881741251.

It is not a de Polignac number, because 1521471882945 - 2⁷ = 1521471882817 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7245104100 + ... + 7245104309.

It is an arithmetic number, because the mean of its divisors is an integer number (173882500920).

Almost surely, 2^{1521471882945} is an apocalyptic number.

1521471882945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1521471882945 is a deficient number, since it is larger than the sum of its proper divisors (1260648131775).

1521471882945 is a wasteful number, since it uses less digits than its factorization.

1521471882945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14490208424.

The product of its digits is 6451200, while the sum is 57.

The spelling of 1521471882945 in words is "one trillion, five hundred twenty-one billion, four hundred seventy-one million, eight hundred eighty-two thousand, nine hundred forty-five".