7919289564 has 48 divisors (see below), whose sum is σ = 19106067456. Its totient is φ = 2551292800.

The previous prime is 7919289557. The next prime is 7919289569. The reversal of 7919289564 is 4659829197.

It is a junction number, because it is equal to n+sod(n) for n = 7919289498 and 7919289507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7919289569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22572 + ... + 127859.

It is an arithmetic number, because the mean of its divisors is an integer number (398043072).

Almost surely, 2^7919289564 is an apocalyptic number.

It is an amenable number.

7919289564 is an abundant number, since it is smaller than the sum of its proper divisors (11186777892).

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

7919289564 is a wasteful number, since it uses less digits than its factorization.

7919289564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150586 (or 150584 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 60.

The square root of 7919289564 is about 88990.3902901881. The cubic root of 7919289564 is about 1993.2513840378.

The spelling of 7919289564 in words is "seven billion, nine hundred nineteen million, two hundred eighty-nine thousand, five hundred sixty-four".