185382749940 has 72 divisors (see below), whose sum is σ = 521418205728. Its totient is φ = 49212924480.

The previous prime is 185382749933. The next prime is 185382749947. The reversal of 185382749940 is 49947283581.

185382749940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (185382749933) and next prime (185382749947).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185382749947) 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 23 ways as a sum of consecutive naturals, for example, 2952675 + ... + 3014805.

It is an arithmetic number, because the mean of its divisors is an integer number (7241919524).

Almost surely, 2^185382749940 is an apocalyptic number.

185382749940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

185382749940 is an abundant number, since it is smaller than the sum of its proper divisors (336035455788).

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

185382749940 is a wasteful number, since it uses less digits than its factorization.

185382749940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62589 (or 62364 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 185382749940 in words is "one hundred eighty-five billion, three hundred eighty-two million, seven hundred forty-nine thousand, nine hundred forty".