11851842953780 has 24 divisors (see below), whose sum is σ = 24889090074408. Its totient is φ = 4740695301248.

The previous prime is 11851842953759. The next prime is 11851842953801. The reversal of 11851842953780 is 8735924815811.

It is a happy number.

11851842953780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11851842953759) and next prime (11851842953801).

It can be written as a sum of positive squares in 4 ways, for example, as 341212529956 + 11510630423824 = 584134^2 + 3392732^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244499 + ... + 4874778.

It is an arithmetic number, because the mean of its divisors is an integer number (1037045419767).

Almost surely, 2^{11851842953780} is an apocalyptic number.

11851842953780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11851842953780 is an abundant number, since it is smaller than the sum of its proper divisors (13037247120628).

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

11851842953780 is a wasteful number, since it uses less digits than its factorization.

11851842953780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235043 (or 5235041 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 62.

The spelling of 11851842953780 in words is "eleven trillion, eight hundred fifty-one billion, eight hundred forty-two million, nine hundred fifty-three thousand, seven hundred eighty".