6387396308634 has 128 divisors (see below), whose sum is σ = 15145282437120. Its totient is φ = 1774263441600.

The previous prime is 6387396308627. The next prime is 6387396308641. The reversal of 6387396308634 is 4368036937836.

It is an interprime number because it is at equal distance from previous prime (6387396308627) and next prime (6387396308641).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 379673947 + ... + 379690769.

It is an arithmetic number, because the mean of its divisors is an integer number (118322519040).

Almost surely, 2^{6387396308634} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6387396308634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7572641218560).

6387396308634 is an abundant number, since it is smaller than the sum of its proper divisors (8757886128486).

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

6387396308634 is a wasteful number, since it uses less digits than its factorization.

6387396308634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26656.

The product of its (nonzero) digits is 282175488, while the sum is 66.

The spelling of 6387396308634 in words is "six trillion, three hundred eighty-seven billion, three hundred ninety-six million, three hundred eight thousand, six hundred thirty-four".