7697899971654 has 16 divisors (see below), whose sum is σ = 15395828428848. Its totient is φ = 2565961909632.

The previous prime is 7697899971649. The next prime is 7697899971659. The reversal of 7697899971654 is 4561799987967.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7697899971649) and next prime (7697899971659).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7697899971659) 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 7 ways as a sum of consecutive naturals, for example, 4223034 + ... + 5764530.

It is an arithmetic number, because the mean of its divisors is an integer number (962239276803).

Almost surely, 2^{7697899971654} is an apocalyptic number.

7697899971654 is an abundant number, since it is smaller than the sum of its proper divisors (7697928457194).

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

7697899971654 is a wasteful number, since it uses less digits than its factorization.

7697899971654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373799.

The product of its digits is 12962436480, while the sum is 87.

The spelling of 7697899971654 in words is "seven trillion, six hundred ninety-seven billion, eight hundred ninety-nine million, nine hundred seventy-one thousand, six hundred fifty-four".