30867309939256 has 64 divisors (see below), whose sum is σ = 67712959226880. Its totient is φ = 12915379532160.

The previous prime is 30867309939253. The next prime is 30867309939329. The reversal of 30867309939256 is 65293990376803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30867309939253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2462385 + ... + 8233951.

It is an arithmetic number, because the mean of its divisors is an integer number (1058014987920).

Almost surely, 2^{30867309939256} 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 30867309939256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33856479613440).

30867309939256 is an abundant number, since it is smaller than the sum of its proper divisors (36845649287624).

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

30867309939256 is a wasteful number, since it uses less digits than its factorization.

30867309939256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5773844 (or 5773840 counting only the distinct ones).

The product of its (nonzero) digits is 396809280, while the sum is 70.

The spelling of 30867309939256 in words is "thirty trillion, eight hundred sixty-seven billion, three hundred nine million, nine hundred thirty-nine thousand, two hundred fifty-six".