6409809269546 has 16 divisors (see below), whose sum is σ = 9622160657928. Its totient is φ = 3202422816000.

The previous prime is 6409809269537. The next prime is 6409809269597. The reversal of 6409809269546 is 6459629089046.

It can be written as a sum of positive squares in 4 ways, for example, as 4866263933521 + 1543545336025 = 2205961^2 + 1242395^2 .

It is a super-2 number, since 2×6409809269546² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31298096 + ... + 31502228.

Almost surely, 2^{6409809269546} is an apocalyptic number.

6409809269546 is a deficient number, since it is larger than the sum of its proper divisors (3212351388382).

6409809269546 is a wasteful number, since it uses less digits than its factorization.

6409809269546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216217.

The product of its (nonzero) digits is 201553920, while the sum is 68.

The spelling of 6409809269546 in words is "six trillion, four hundred nine billion, eight hundred nine million, two hundred sixty-nine thousand, five hundred forty-six".