897884184055 has 32 divisors (see below), whose sum is σ = 1134580348800. Its totient is φ = 680802017280.

The previous prime is 897884184011. The next prime is 897884184073. The reversal of 897884184055 is 550481488798.

It is a happy number.

It is not a de Polignac number, because 897884184055 - 2¹¹ = 897884182007 is a prime.

It is a super-2 number, since 2×897884184055² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59262621 + ... + 59277769.

It is an arithmetic number, because the mean of its divisors is an integer number (35455635900).

Almost surely, 2^897884184055 is an apocalyptic number.

897884184055 is a deficient number, since it is larger than the sum of its proper divisors (236696164745).

897884184055 is a wasteful number, since it uses less digits than its factorization.

897884184055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19851.

The product of its (nonzero) digits is 103219200, while the sum is 67.

The spelling of 897884184055 in words is "eight hundred ninety-seven billion, eight hundred eighty-four million, one hundred eighty-four thousand, fifty-five".