6354642661400 has 96 divisors (see below), whose sum is σ = 16216566984000. Its totient is φ = 2296602460800.

The previous prime is 6354642661331. The next prime is 6354642661429. The reversal of 6354642661400 is 41662464536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8501750 + ... + 9218949.

It is an arithmetic number, because the mean of its divisors is an integer number (168922572750).

Almost surely, 2^{6354642661400} is an apocalyptic number.

It is an amenable number.

6354642661400 is an abundant number, since it is smaller than the sum of its proper divisors (9861924322600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6354642661400 is a wasteful number, since it uses less digits than its factorization.

6354642661400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17720889 (or 17720880 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 6354642661400 in words is "six trillion, three hundred fifty-four billion, six hundred forty-two million, six hundred sixty-one thousand, four hundred".