1200611451952 has 40 divisors (see below), whose sum is σ = 2686929913872. Its totient is φ = 513630566400.

The previous prime is 1200611451929. The next prime is 1200611451959. The reversal of 1200611451952 is 2591541160021.

It is a super-2 number, since 2×1200611451952² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1200611451959) 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, 200633949 + ... + 200639932.

Almost surely, 2^{1200611451952} is an apocalyptic number.

It is an amenable number.

1200611451952 is an abundant number, since it is smaller than the sum of its proper divisors (1486318461920).

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

1200611451952 is a wasteful number, since it uses less digits than its factorization.

1200611451952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401273917 (or 401273911 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 1200611451952 in words is "one trillion, two hundred billion, six hundred eleven million, four hundred fifty-one thousand, nine hundred fifty-two".