2146477557 has 16 divisors (see below), whose sum is σ = 3442972160. Its totient is φ = 1162002672.

The previous prime is 2146477549. The next prime is 2146477561. The reversal of 2146477557 is 7557746412.

It is not a de Polignac number, because 2146477557 - 2³ = 2146477549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146477517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2689423 + ... + 2690220.

It is an arithmetic number, because the mean of its divisors is an integer number (215185760).

Almost surely, 2^2146477557 is an apocalyptic number.

It is an amenable number.

2146477557 is a deficient number, since it is larger than the sum of its proper divisors (1296494603).

2146477557 is a wasteful number, since it uses less digits than its factorization.

2146477557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379672.

The product of its digits is 1646400, while the sum is 48.

The square root of 2146477557 is about 46330.0934274905. The cubic root of 2146477557 is about 1289.9576447845.

The spelling of 2146477557 in words is "two billion, one hundred forty-six million, four hundred seventy-seven thousand, five hundred fifty-seven".