1199964680 has 32 divisors (see below), whose sum is σ = 2707473600. Its totient is φ = 478643136.

The previous prime is 1199964677. The next prime is 1199964683. The reversal of 1199964680 is 864699911.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1199964677) and next prime (1199964683).

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1199964683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27422 + ... + 56141.

It is an arithmetic number, because the mean of its divisors is an integer number (84608550).

Almost surely, 2^1199964680 is an apocalyptic number.

1199964680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1199964680 is an abundant number, since it is smaller than the sum of its proper divisors (1507508920).

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

1199964680 is a wasteful number, since it uses less digits than its factorization.

1199964680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83933 (or 83929 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 53.

The square root of 1199964680 is about 34640.5063473385. The cubic root of 1199964680 is about 1062.6481432190.

The spelling of 1199964680 in words is "one billion, one hundred ninety-nine million, nine hundred sixty-four thousand, six hundred eighty".