1551253270872 has 64 divisors (see below), whose sum is σ = 3883528396800. Its totient is φ = 516365573760.

The previous prime is 1551253270859. The next prime is 1551253270873. The reversal of 1551253270872 is 2780723521551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551253270873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53427223 + ... + 53456249.

It is an arithmetic number, because the mean of its divisors is an integer number (60680131200).

Almost surely, 2^{1551253270872} is an apocalyptic number.

1551253270872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1551253270872 is an abundant number, since it is smaller than the sum of its proper divisors (2332275125928).

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

1551253270872 is a wasteful number, since it uses less digits than its factorization.

1551253270872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32056 (or 32052 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 1551253270872 in words is "one trillion, five hundred fifty-one billion, two hundred fifty-three million, two hundred seventy thousand, eight hundred seventy-two".