2081554470 has 64 divisors (see below), whose sum is σ = 5601816000. Its totient is φ = 549980928.

The previous prime is 2081554469. The next prime is 2081554507. The reversal of 2081554470 is 744551802.

2081554470 is a `hidden beast` number, since 20 + 81 + 554 + 4 + 7 + 0 = 666.

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, 5935 + ... + 64794.

It is an arithmetic number, because the mean of its divisors is an integer number (87528375).

Almost surely, 2^2081554470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081554470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2800908000).

2081554470 is an abundant number, since it is smaller than the sum of its proper divisors (3520261530).

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

2081554470 is a wasteful number, since it uses less digits than its factorization.

2081554470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70854 (or 70848 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 2081554470 is about 45624.0558258470. The cubic root of 2081554470 is about 1276.8187745451.

The spelling of 2081554470 in words is "two billion, eighty-one million, five hundred fifty-four thousand, four hundred seventy".