1086779520 has 96 divisors (see below), whose sum is σ = 3752805420. Its totient is φ = 289806336.

The previous prime is 1086779501. The next prime is 1086779521. The reversal of 1086779520 is 259776801.

It can be written as a sum of positive squares in 2 ways, for example, as 1045099584 + 41679936 = 32328^2 + 6456^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1086779521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88579 + ... + 100098.

Almost surely, 2^1086779520 is an apocalyptic number.

1086779520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1086779520 is an abundant number, since it is smaller than the sum of its proper divisors (2666025900).

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

1086779520 is a wasteful number, since it uses less digits than its factorization.

1086779520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188702 (or 188687 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 1086779520 is about 32966.3391962165. The cubic root of 1086779520 is about 1028.1279093114.

The spelling of 1086779520 in words is "one billion, eighty-six million, seven hundred seventy-nine thousand, five hundred twenty".