309949110000 has 300 divisors, whose sum is σ = 1085417673912. Its totient is φ = 82540224000.

The previous prime is 309949109917. The next prime is 309949110043. The reversal of 309949110000 is 11949903.

It is a tau number, because it is divible by the number of its divisors (300).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 81628102 + ... + 81631898.

Almost surely, 2^309949110000 is an apocalyptic number.

309949110000 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 309949110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (542708836956).

309949110000 is an abundant number, since it is smaller than the sum of its proper divisors (775468563912).

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

309949110000 is a wasteful number, since it uses less digits than its factorization.

309949110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738 (or 4714 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The spelling of 309949110000 in words is "three hundred nine billion, nine hundred forty-nine million, one hundred ten thousand".