1219906937952 has 36 divisors (see below), whose sum is σ = 3469110355620. Its totient is φ = 406635645888.

The previous prime is 1219906937911. The next prime is 1219906937969. The reversal of 1219906937952 is 2597396099121.

1219906937952 is a `hidden beast` number, since 12 + 199 + 0 + 69 + 379 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1219906937952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2117893702 + ... + 2117894277.

It is an arithmetic number, because the mean of its divisors is an integer number (96364176545).

Almost surely, 2^{1219906937952} is an apocalyptic number.

1219906937952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1219906937952 is an abundant number, since it is smaller than the sum of its proper divisors (2249203417668).

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

1219906937952 is a wasteful number, since it uses less digits than its factorization.

1219906937952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235787995 (or 4235787984 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 63.

The spelling of 1219906937952 in words is "one trillion, two hundred nineteen billion, nine hundred six million, nine hundred thirty-seven thousand, nine hundred fifty-two".