7161904989876 has 144 divisors (see below), whose sum is σ = 20998053746880. Its totient is φ = 1883146890240.

The previous prime is 7161904989829. The next prime is 7161904989919. The reversal of 7161904989876 is 6789894091617.

It is a junction number, because it is equal to n+sod(n) for n = 7161904989798 and 7161904989807.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1114860 + ... + 3945468.

Almost surely, 2^{7161904989876} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7161904989876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10499026873440).

7161904989876 is an abundant number, since it is smaller than the sum of its proper divisors (13836148757004).

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

7161904989876 is a wasteful number, since it uses less digits than its factorization.

7161904989876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830974 (or 2830965 counting only the distinct ones).

The product of its (nonzero) digits is 329204736, while the sum is 75.

The spelling of 7161904989876 in words is "seven trillion, one hundred sixty-one billion, nine hundred four million, nine hundred eighty-nine thousand, eight hundred seventy-six".