8551244237920 has 48 divisors (see below), whose sum is σ = 20854002089088. Its totient is φ = 3310159057920.

The previous prime is 8551244237917. The next prime is 8551244237923. The reversal of 8551244237920 is 297324421558.

It is an interprime number because it is at equal distance from previous prime (8551244237917) and next prime (8551244237923).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8551244237923) 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, 862015629 + ... + 862025548.

It is an arithmetic number, because the mean of its divisors is an integer number (434458376856).

Almost surely, 2^{8551244237920} is an apocalyptic number.

8551244237920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8551244237920 is an abundant number, since it is smaller than the sum of its proper divisors (12302757851168).

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

8551244237920 is a wasteful number, since it uses less digits than its factorization.

8551244237920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1724041223 (or 1724041215 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 52.

The spelling of 8551244237920 in words is "eight trillion, five hundred fifty-one billion, two hundred forty-four million, two hundred thirty-seven thousand, nine hundred twenty".