6352401378644 has 24 divisors (see below), whose sum is σ = 11816426217960. Its totient is φ = 2977733574656.

The previous prime is 6352401378529. The next prime is 6352401378769. The reversal of 6352401378644 is 4468731042536.

It can be written as a sum of positive squares in 4 ways, for example, as 2602214207044 + 3750187171600 = 1613138^2 + 1936540^2 .

It is a congruent number.

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, 181728959 + ... + 181763910.

It is an arithmetic number, because the mean of its divisors is an integer number (492351092415).

Almost surely, 2^{6352401378644} is an apocalyptic number.

It is an amenable number.

6352401378644 is a deficient number, since it is larger than the sum of its proper divisors (5464024839316).

6352401378644 is a wasteful number, since it uses less digits than its factorization.

6352401378644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363493147 (or 363493145 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 53.

The spelling of 6352401378644 in words is "six trillion, three hundred fifty-two billion, four hundred one million, three hundred seventy-eight thousand, six hundred forty-four".