30936923136 has 352 divisors, whose sum is σ = 110879930880. Its totient is φ = 8318287872.

The previous prime is 30936923123. The next prime is 30936923159. The reversal of 30936923136 is 63132963903.

It is a junction number, because it is equal to n+sod(n) for n = 30936923091 and 30936923100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3285411 + ... + 3294813.

Almost surely, 2^30936923136 is an apocalyptic number.

30936923136 is a gapful number since it is divisible by the number (36) 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 30936923136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55439965440).

30936923136 is an abundant number, since it is smaller than the sum of its proper divisors (79943007744).

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

30936923136 is a wasteful number, since it uses less digits than its factorization.

30936923136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9456 (or 9432 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 45.

The spelling of 30936923136 in words is "thirty billion, nine hundred thirty-six million, nine hundred twenty-three thousand, one hundred thirty-six".