900111858940 has 48 divisors (see below), whose sum is σ = 2160356184000. Its totient is φ = 308597248512.

The previous prime is 900111858931. The next prime is 900111858941. The reversal of 900111858940 is 49858111009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900111858941) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3737286 + ... + 3970834.

It is an arithmetic number, because the mean of its divisors is an integer number (45007420500).

Almost surely, 2^900111858940 is an apocalyptic number.

It is an amenable number.

900111858940 is an abundant number, since it is smaller than the sum of its proper divisors (1260244325060).

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

900111858940 is a wasteful number, since it uses less digits than its factorization.

900111858940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261094 (or 261092 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 46.

Adding to 900111858940 its reverse (49858111009), we get a palindrome (949969969949).

The spelling of 900111858940 in words is "nine hundred billion, one hundred eleven million, eight hundred fifty-eight thousand, nine hundred forty".