1209772404008 has 32 divisors (see below), whose sum is σ = 2592498312000. Its totient is φ = 518448112512.

The previous prime is 1209772403921. The next prime is 1209772404023. The reversal of 1209772404008 is 8004042779021.

It is a self number, because there is not a number n which added to its sum of digits gives 1209772404008.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621668 + ... + 1675116.

It is an arithmetic number, because the mean of its divisors is an integer number (81015572250).

Almost surely, 2^{1209772404008} is an apocalyptic number.

It is an amenable number.

1209772404008 is an abundant number, since it is smaller than the sum of its proper divisors (1382725907992).

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

1209772404008 is a wasteful number, since it uses less digits than its factorization.

1209772404008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073969 (or 1073965 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 1209772404008 in words is "one trillion, two hundred nine billion, seven hundred seventy-two million, four hundred four thousand, eight".