6396977397735 has 24 divisors (see below), whose sum is σ = 11372456506320. Its totient is φ = 3411705605760.

The previous prime is 6396977397691. The next prime is 6396977397743. The reversal of 6396977397735 is 5377937796936.

It is a happy number.

6396977397735 is a `hidden beast` number, since 6 + 3 + 96 + 9 + 77 + 397 + 73 + 5 = 666.

It is not a de Polignac number, because 6396977397735 - 2²³ = 6396969009127 is a prime.

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, 29278095 + ... + 29495775.

It is an arithmetic number, because the mean of its divisors is an integer number (473852354430).

Almost surely, 2^{6396977397735} is an apocalyptic number.

6396977397735 is a deficient number, since it is larger than the sum of its proper divisors (4975479108585).

6396977397735 is an frugal number, since it uses more digits than its factorization.

6396977397735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435376 (or 217689 counting only the distinct ones).

The product of its digits is 8506598940, while the sum is 81.

The spelling of 6396977397735 in words is "six trillion, three hundred ninety-six billion, nine hundred seventy-seven million, three hundred ninety-seven thousand, seven hundred thirty-five".