2489273506881 has 48 divisors (see below), whose sum is σ = 4370148182400. Its totient is φ = 1333684030464.

The previous prime is 2489273506879. The next prime is 2489273506931. The reversal of 2489273506881 is 1886053729842.

2489273506881 is a `hidden beast` number, since 2 + 48 + 9 + 2 + 7 + 3 + 506 + 8 + 81 = 666.

It is not a de Polignac number, because 2489273506881 - 2¹ = 2489273506879 is a prime.

It is a super-2 number, since 2×2489273506881² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (2489273506781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10603446 + ... + 10835663.

It is an arithmetic number, because the mean of its divisors is an integer number (91044753800).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2489273506881 = 4978547013762, but 3⋅2489273506881 = 7467820520643 is not.

Almost surely, 2^{2489273506881} is an apocalyptic number.

2489273506881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2489273506881 is a deficient number, since it is larger than the sum of its proper divisors (1880874675519).

2489273506881 is a wasteful number, since it uses less digits than its factorization.

2489273506881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21439238 (or 21439235 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 2489273506881 in words is "two trillion, four hundred eighty-nine billion, two hundred seventy-three million, five hundred six thousand, eight hundred eighty-one".