18012787037 has 24 divisors (see below), whose sum is σ = 21746260800. Its totient is φ = 14613654528.

The previous prime is 18012787033. The next prime is 18012787109. The reversal of 18012787037 is 73078721081.

It is not a de Polignac number, because 18012787037 - 2² = 18012787033 is a prime.

It is a super-3 number, since 3×18012787037³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18012787033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3558014 + ... + 3563072.

It is an arithmetic number, because the mean of its divisors is an integer number (906094200).

Almost surely, 2^18012787037 is an apocalyptic number.

It is an amenable number.

18012787037 is a deficient number, since it is larger than the sum of its proper divisors (3733473763).

18012787037 is a wasteful number, since it uses less digits than its factorization.

18012787037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6513 (or 6494 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 44.

The spelling of 18012787037 in words is "eighteen billion, twelve million, seven hundred eighty-seven thousand, thirty-seven".