18101529040 has 60 divisors (see below), whose sum is σ = 48957258276. Its totient is φ = 6206237184.

The previous prime is 18101529031. The next prime is 18101529049. The reversal of 18101529040 is 4092510181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18101529031) and next prime (18101529049).

It can be written as a sum of positive squares in 2 ways, for example, as 13166185536 + 4935343504 = 114744^2 + 70252^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18101528993 and 18101529011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18101529049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2304949 + ... + 2312788.

Almost surely, 2^18101529040 is an apocalyptic number.

18101529040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18101529040 is an abundant number, since it is smaller than the sum of its proper divisors (30855729236).

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

18101529040 is a wasteful number, since it uses less digits than its factorization.

18101529040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4617764 (or 4617751 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The spelling of 18101529040 in words is "eighteen billion, one hundred one million, five hundred twenty-nine thousand, forty".