7823628781660 has 12 divisors (see below), whose sum is σ = 16429620441528. Its totient is φ = 3129451512656.

The previous prime is 7823628781627. The next prime is 7823628781729. The reversal of 7823628781660 is 661878263287.

It is a super-2 number, since 2×7823628781660² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7823628781592 and 7823628781601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195590719522 + ... + 195590719561.

It is an arithmetic number, because the mean of its divisors is an integer number (1369135036794).

Almost surely, 2^{7823628781660} is an apocalyptic number.

It is an amenable number.

7823628781660 is an abundant number, since it is smaller than the sum of its proper divisors (8605991659868).

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

7823628781660 is a wasteful number, since it uses less digits than its factorization.

7823628781660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391181439092 (or 391181439090 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 7823628781660 in words is "seven trillion, eight hundred twenty-three billion, six hundred twenty-eight million, seven hundred eighty-one thousand, six hundred sixty".