1779360618 has 48 divisors (see below), whose sum is σ = 4164640704. Its totient is φ = 505330560.

The previous prime is 1779360589. The next prime is 1779360623. The reversal of 1779360618 is 8160639771.

It is a happy number.

It is a super-2 number, since 2×1779360618² = 6332248417778683848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30978 + ... + 67218.

It is an arithmetic number, because the mean of its divisors is an integer number (86763348).

Almost surely, 2^1779360618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1779360618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2082320352).

1779360618 is an abundant number, since it is smaller than the sum of its proper divisors (2385280086).

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

1779360618 is a wasteful number, since it uses less digits than its factorization.

1779360618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36427 (or 36420 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 1779360618 is about 42182.4681354707. The cubic root of 1779360618 is about 1211.7731483517.

The spelling of 1779360618 in words is "one billion, seven hundred seventy-nine million, three hundred sixty thousand, six hundred eighteen".