12097973700 has 252 divisors, whose sum is σ = 39573175488. Its totient is φ = 3208766400.

The previous prime is 12097973651. The next prime is 12097973737. The reversal of 12097973700 is 737979021.

12097973700 is a `hidden beast` number, since 1 + 209 + 79 + 7 + 370 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 19172385 + ... + 19173015.

Almost surely, 2^12097973700 is an apocalyptic number.

12097973700 is a gapful number since it is divisible by the number (10) 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 12097973700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19786587744).

12097973700 is an abundant number, since it is smaller than the sum of its proper divisors (27475201788).

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

12097973700 is a wasteful number, since it uses less digits than its factorization.

12097973700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 45.

The spelling of 12097973700 in words is "twelve billion, ninety-seven million, nine hundred seventy-three thousand, seven hundred".