12345879700 has 72 divisors (see below), whose sum is σ = 33401237184. Its totient is φ = 3848064000.

The previous prime is 12345879649. The next prime is 12345879701. The reversal of 12345879700 is 797854321.

It is a super-3 number, since 3×12345879700³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345879701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 793981 + ... + 809380.

It is an arithmetic number, because the mean of its divisors is an integer number (463906072).

Almost surely, 2^12345879700 is an apocalyptic number.

12345879700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12345879700 is an abundant number, since it is smaller than the sum of its proper divisors (21055357484).

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

12345879700 is a wasteful number, since it uses less digits than its factorization.

12345879700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603393 (or 1603386 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 12345879700 in words is "twelve billion, three hundred forty-five million, eight hundred seventy-nine thousand, seven hundred".