1229554381872 has 160 divisors (see below), whose sum is σ = 3224616468480. Its totient is φ = 403681824000.

The previous prime is 1229554381789. The next prime is 1229554381873. The reversal of 1229554381872 is 2781834559221.

It is not an unprimeable number, because it can be changed into a prime (1229554381873) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 582450097 + ... + 582452207.

It is an arithmetic number, because the mean of its divisors is an integer number (20153852928).

Almost surely, 2^{1229554381872} is an apocalyptic number.

1229554381872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1229554381872 is an abundant number, since it is smaller than the sum of its proper divisors (1995062086608).

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

1229554381872 is a wasteful number, since it uses less digits than its factorization.

1229554381872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903 (or 2897 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 57.

The spelling of 1229554381872 in words is "one trillion, two hundred twenty-nine billion, five hundred fifty-four million, three hundred eighty-one thousand, eight hundred seventy-two".