6838696297990 has 16 divisors (see below), whose sum is σ = 12355076416320. Its totient is φ = 2725384501440.

The previous prime is 6838696297969. The next prime is 6838696298011. The reversal of 6838696297990 is 997926968386.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6838696297969) and next prime (6838696298011).

It is a super-2 number, since 2×6838696297990² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1261749375 + ... + 1261754794.

It is an arithmetic number, because the mean of its divisors is an integer number (772192276020).

Almost surely, 2^{6838696297990} is an apocalyptic number.

6838696297990 is a deficient number, since it is larger than the sum of its proper divisors (5516380118330).

6838696297990 is a wasteful number, since it uses less digits than its factorization.

6838696297990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523504447.

The product of its (nonzero) digits is 3809369088, while the sum is 82.

The spelling of 6838696297990 in words is "six trillion, eight hundred thirty-eight billion, six hundred ninety-six million, two hundred ninety-seven thousand, nine hundred ninety".