6450138508670 has 16 divisors (see below), whose sum is σ = 11783536620048. Its totient is φ = 2541547113600.

The previous prime is 6450138508663. The next prime is 6450138508673. The reversal of 6450138508670 is 768058310546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6450138508673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4813535531 + ... + 4813536870.

It is an arithmetic number, because the mean of its divisors is an integer number (736471038753).

Almost surely, 2^{6450138508670} is an apocalyptic number.

6450138508670 is a deficient number, since it is larger than the sum of its proper divisors (5333398111378).

6450138508670 is a wasteful number, since it uses less digits than its factorization.

6450138508670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9627072475.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 6450138508670 in words is "six trillion, four hundred fifty billion, one hundred thirty-eight million, five hundred eight thousand, six hundred seventy".