18072350712 has 48 divisors (see below), whose sum is σ = 52711025640. Its totient is φ = 5560723008.

The previous prime is 18072350693. The next prime is 18072350719. The reversal of 18072350712 is 21705327081.

18072350712 is a `hidden beast` number, since 1 + 80 + 72 + 3 + 507 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18072350719) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9653098 + ... + 9654969.

Almost surely, 2^18072350712 is an apocalyptic number.

18072350712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18072350712 is an abundant number, since it is smaller than the sum of its proper divisors (34638674928).

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

18072350712 is a wasteful number, since it uses less digits than its factorization.

18072350712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19308092 (or 19308085 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

Adding to 18072350712 its reverse (21705327081), we get a palindrome (39777677793).

The spelling of 18072350712 in words is "eighteen billion, seventy-two million, three hundred fifty thousand, seven hundred twelve".