1868526950920 has 128 divisors (see below), whose sum is σ = 4929934464000. Its totient is φ = 637097529600.

The previous prime is 1868526950909. The next prime is 1868526950933. The reversal of 1868526950920 is 290596258681.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2107105 + ... + 2859535.

It is an arithmetic number, because the mean of its divisors is an integer number (38515113000).

Almost surely, 2^{1868526950920} is an apocalyptic number.

1868526950920 is a gapful number since it is divisible by the number (10) 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 1868526950920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2464967232000).

1868526950920 is an abundant number, since it is smaller than the sum of its proper divisors (3061407513080).

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

1868526950920 is a wasteful number, since it uses less digits than its factorization.

1868526950920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752644 (or 752626 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 61.

The spelling of 1868526950920 in words is "one trillion, eight hundred sixty-eight billion, five hundred twenty-six million, nine hundred fifty thousand, nine hundred twenty".