1081077618 has 32 divisors (see below), whose sum is σ = 2337474240. Its totient is φ = 332164800.

The previous prime is 1081077589. The next prime is 1081077661. The reversal of 1081077618 is 8167701801.

It is a super-2 number, since 2×1081077618² = 2337457632281107848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123933 + ... + 132368.

It is an arithmetic number, because the mean of its divisors is an integer number (73046070).

Almost surely, 2^1081077618 is an apocalyptic number.

1081077618 is an abundant number, since it is smaller than the sum of its proper divisors (1256396622).

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

1081077618 is a wasteful number, since it uses less digits than its factorization.

1081077618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256362.

The product of its (nonzero) digits is 18816, while the sum is 39.

The square root of 1081077618 is about 32879.7447982797. The cubic root of 1081077618 is about 1026.3266954727.

The spelling of 1081077618 in words is "one billion, eighty-one million, seventy-seven thousand, six hundred eighteen".