6364402542 has 48 divisors (see below), whose sum is σ = 14472420768. Its totient is φ = 2017477440.

The previous prime is 6364402531. The next prime is 6364402543. The reversal of 6364402542 is 2452044636.

6364402542 is a `hidden beast` number, since 6 + 3 + 644 + 0 + 2 + 5 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6364402497 and 6364402506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6364402543) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 27192 + ... + 116052.

It is an arithmetic number, because the mean of its divisors is an integer number (301508766).

Almost surely, 2^6364402542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6364402542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7236210384).

6364402542 is an abundant number, since it is smaller than the sum of its proper divisors (8108018226).

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

6364402542 is a wasteful number, since it uses less digits than its factorization.

6364402542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89065 (or 89062 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 6364402542 is about 79777.2056542469. The cubic root of 6364402542 is about 1853.1868656643.

The spelling of 6364402542 in words is "six billion, three hundred sixty-four million, four hundred two thousand, five hundred forty-two".