30939078451092 has 144 divisors (see below), whose sum is σ = 85944815651520. Its totient is φ = 8634559385088.

The previous prime is 30939078451091. The next prime is 30939078451147. The reversal of 30939078451092 is 29015487093903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30939078451091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2606448 + ... + 8286840.

It is an arithmetic number, because the mean of its divisors is an integer number (596838997580).

Almost surely, 2^{30939078451092} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30939078451092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42972407825760).

30939078451092 is an abundant number, since it is smaller than the sum of its proper divisors (55005737200428).

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

30939078451092 is a wasteful number, since it uses less digits than its factorization.

30939078451092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680630 (or 5680621 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 30939078451092 in words is "thirty trillion, nine hundred thirty-nine billion, seventy-eight million, four hundred fifty-one thousand, ninety-two".