18077765750 has 32 divisors (see below), whose sum is σ = 36918090144. Its totient is φ = 6573732000.

The previous prime is 18077765747. The next prime is 18077765777. The reversal of 18077765750 is 5756777081.

It is a super-2 number, since 2×18077765750² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18077765692 and 18077765701.

It is a congruent number.

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, 3284117 + ... + 3289616.

It is an arithmetic number, because the mean of its divisors is an integer number (1153690317).

Almost surely, 2^18077765750 is an apocalyptic number.

18077765750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18077765750 is an abundant number, since it is smaller than the sum of its proper divisors (18840324394).

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

18077765750 is a wasteful number, since it uses less digits than its factorization.

18077765750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6573761 (or 6573751 counting only the distinct ones).

The product of its (nonzero) digits is 2881200, while the sum is 53.

The spelling of 18077765750 in words is "eighteen billion, seventy-seven million, seven hundred sixty-five thousand, seven hundred fifty".