1554431202012 has 96 divisors (see below), whose sum is σ = 3983654945088. Its totient is φ = 468796483584.

The previous prime is 1554431202007. The next prime is 1554431202059. The reversal of 1554431202012 is 2102021344551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8282688 + ... + 8468280.

It is an arithmetic number, because the mean of its divisors is an integer number (41496405678).

Almost surely, 2^{1554431202012} is an apocalyptic number.

1554431202012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1554431202012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1991827472544).

1554431202012 is an abundant number, since it is smaller than the sum of its proper divisors (2429223743076).

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

1554431202012 is a wasteful number, since it uses less digits than its factorization.

1554431202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186679 (or 186677 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1554431202012 its reverse (2102021344551), we get a palindrome (3656452546563).

The spelling of 1554431202012 in words is "one trillion, five hundred fifty-four billion, four hundred thirty-one million, two hundred two thousand, twelve".