18070780630 has 32 divisors (see below), whose sum is σ = 37179821376. Its totient is φ = 6194755584.

The previous prime is 18070780619. The next prime is 18070780633. The reversal of 18070780630 is 3608707081.

It is a super-2 number, since 2×18070780630² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18070780633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570982 + ... + 601798.

It is an arithmetic number, because the mean of its divisors is an integer number (1161869418).

Almost surely, 2^18070780630 is an apocalyptic number.

18070780630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18070780630 is an abundant number, since it is smaller than the sum of its proper divisors (19109040746).

18070780630 is a wasteful number, since it uses less digits than its factorization.

18070780630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39208.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 18070780630 in words is "eighteen billion, seventy million, seven hundred eighty thousand, six hundred thirty".