1026779660 has 24 divisors (see below), whose sum is σ = 2159117520. Its totient is φ = 410163264.

The previous prime is 1026779659. The next prime is 1026779681. The reversal of 1026779660 is 669776201.

1026779660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18770 + ... + 49049.

It is an arithmetic number, because the mean of its divisors is an integer number (89963230).

Almost surely, 2^1026779660 is an apocalyptic number.

1026779660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026779660 is an abundant number, since it is smaller than the sum of its proper divisors (1132337860).

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

1026779660 is a wasteful number, since it uses less digits than its factorization.

1026779660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68585 (or 68583 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 1026779660 is about 32043.4027531409. The cubic root of 1026779660 is about 1008.8480347175.

The spelling of 1026779660 in words is "one billion, twenty-six million, seven hundred seventy-nine thousand, six hundred sixty".