890896243122 has 54 divisors (see below), whose sum is σ = 1938684395583. Its totient is φ = 295677295704.

The previous prime is 890896243121. The next prime is 890896243129. The reversal of 890896243122 is 221342698098.

890896243122 is a `hidden beast` number, since 8 + 9 + 0 + 8 + 9 + 624 + 3 + 1 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 445448121561 + 445448121561 = 667419^2 + 667419^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=667419.

It is a super-2 number, since 2×890896243122² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (890896243121) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1517710513 + ... + 1517711099.

Almost surely, 2^890896243122 is an apocalyptic number.

890896243122 is an abundant number, since it is smaller than the sum of its proper divisors (1047788152461).

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

890896243122 is an frugal number, since it uses more digits than its factorization.

890896243122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940 (or 971 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 890896243122 in words is "eight hundred ninety billion, eight hundred ninety-six million, two hundred forty-three thousand, one hundred twenty-two".