2054387785 has 8 divisors (see below), whose sum is σ = 2476950336. Its totient is φ = 1635720240.

The previous prime is 2054387771. The next prime is 2054387821. The reversal of 2054387785 is 5877834502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2054387785 - 2⁹ = 2054387273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 972589 + ... + 974698.

It is an arithmetic number, because the mean of its divisors is an integer number (309618792).

Almost surely, 2^2054387785 is an apocalyptic number.

It is an amenable number.

2054387785 is a deficient number, since it is larger than the sum of its proper divisors (422562551).

2054387785 is a wasteful number, since it uses less digits than its factorization.

2054387785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947503.

The product of its (nonzero) digits is 1881600, while the sum is 49.

The square root of 2054387785 is about 45325.3547697092. The cubic root of 2054387785 is about 1271.2397807077.

The spelling of 2054387785 in words is "two billion, fifty-four million, three hundred eighty-seven thousand, seven hundred eighty-five".