12309693390 has 64 divisors (see below), whose sum is σ = 33524305920. Its totient is φ = 3212739360.

The previous prime is 12309693367. The next prime is 12309693439. The reversal of 12309693390 is 9339690321.

12309693390 is a `hidden beast` number, since 1 + 2 + 309 + 6 + 9 + 339 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 472326 + ... + 497705.

It is an arithmetic number, because the mean of its divisors is an integer number (523817280).

Almost surely, 2^12309693390 is an apocalyptic number.

12309693390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12309693390 is an abundant number, since it is smaller than the sum of its proper divisors (21214612530).

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

12309693390 is a wasteful number, since it uses less digits than its factorization.

12309693390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970094 (or 970088 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 45.

The spelling of 12309693390 in words is "twelve billion, three hundred nine million, six hundred ninety-three thousand, three hundred ninety".