30549881382 has 32 divisors (see below), whose sum is σ = 64829030400. Its totient is φ = 9564252288.

The previous prime is 30549881377. The next prime is 30549881387. The reversal of 30549881382 is 28318894503.

It is an interprime number because it is at equal distance from previous prime (30549881377) and next prime (30549881387).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30549881387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263782 + ... + 361497.

It is an arithmetic number, because the mean of its divisors is an integer number (2025907200).

Almost surely, 2^30549881382 is an apocalyptic number.

30549881382 is an abundant number, since it is smaller than the sum of its proper divisors (34279149018).

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

30549881382 is a wasteful number, since it uses less digits than its factorization.

30549881382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625780.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 30549881382 in words is "thirty billion, five hundred forty-nine million, eight hundred eighty-one thousand, three hundred eighty-two".