1080686651 has 32 divisors (see below), whose sum is σ = 1306368000. Its totient is φ = 882611200.

The previous prime is 1080686647. The next prime is 1080686689. The reversal of 1080686651 is 1566860801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1080686651 - 2² = 1080686647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1080686599 and 1080686608.

It is not an unprimeable number, because it can be changed into a prime (1080686051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 358850 + ... + 361848.

It is an arithmetic number, because the mean of its divisors is an integer number (40824000).

Almost surely, 2^1080686651 is an apocalyptic number.

1080686651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1080686651 is a deficient number, since it is larger than the sum of its proper divisors (225681349).

1080686651 is a wasteful number, since it uses less digits than its factorization.

1080686651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 1080686651 is about 32873.7988525817. The cubic root of 1080686651 is about 1026.2029583659.

The spelling of 1080686651 in words is "one billion, eighty million, six hundred eighty-six thousand, six hundred fifty-one".