920088990000881 has 2 divisors, whose sum is σ = 920088990000882. Its totient is φ = 920088990000880.

The previous prime is 920088990000877. The next prime is 920088990001007. The reversal of 920088990000881 is 188000099880029.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 917714863728481 + 2374126272400 = 30293809^2 + 1540820^2 .

It is a cyclic number.

It is not a de Polignac number, because 920088990000881 - 2² = 920088990000877 is a prime.

It is a super-2 number, since 2×920088990000881² (a number of 31 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (920088990000841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460044495000440 + 460044495000441.

It is an arithmetic number, because the mean of its divisors is an integer number (460044495000441).

Almost surely, 2^{920088990000881} is an apocalyptic number.

It is an amenable number.

920088990000881 is a deficient number, since it is larger than the sum of its proper divisors (1).

920088990000881 is an equidigital number, since it uses as much as digits as its factorization.

920088990000881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 62.

The spelling of 920088990000881 in words is "nine hundred twenty trillion, eighty-eight billion, nine hundred ninety million, eight hundred eighty-one", and thus it is an aban number.