30549382139640 has 768 divisors, whose sum is σ = 116913077568000. Its totient is φ = 6327918858240.

The previous prime is 30549382139579. The next prime is 30549382139669. The reversal of 30549382139640 is 4693128394503.

It is a super-2 number, since 2×30549382139640² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3738752755 + ... + 3738760925.

It is an arithmetic number, because the mean of its divisors is an integer number (152230569750).

Almost surely, 2^{30549382139640} is an apocalyptic number.

30549382139640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30549382139640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58456538784000).

30549382139640 is an abundant number, since it is smaller than the sum of its proper divisors (86363695428360).

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

30549382139640 is a wasteful number, since it uses less digits than its factorization.

30549382139640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100 (or 9089 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 57.

The spelling of 30549382139640 in words is "thirty trillion, five hundred forty-nine billion, three hundred eighty-two million, one hundred thirty-nine thousand, six hundred forty".