2988371557 has 8 divisors (see below), whose sum is σ = 3057836184. Its totient is φ = 2919391488.

The previous prime is 2988371539. The next prime is 2988371579. The reversal of 2988371557 is 7551738892.

It is a Cunningham number, because it is equal to 54666²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 2988371556 = 1^2 + 54666^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2988371557 - 2⁷ = 2988371429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2988371498 and 2988371507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2988371597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108648 + ... + 133345.

It is an arithmetic number, because the mean of its divisors is an integer number (382229523).

Almost surely, 2^2988371557 is an apocalyptic number.

It is an amenable number.

2988371557 is a deficient number, since it is larger than the sum of its proper divisors (69464627).

2988371557 is a wasteful number, since it uses less digits than its factorization.

2988371557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242279.

The product of its digits is 4233600, while the sum is 55.

The square root of 2988371557 is about 54666.0000091465. Note that the first 5 decimals coincide. The cubic root of 2988371557 is about 1440.3836999949.

It can be divided in two parts, 2988 and 371557, that added together give a triangular number (374545 = T₈₆₅).

The spelling of 2988371557 in words is "two billion, nine hundred eighty-eight million, three hundred seventy-one thousand, five hundred fifty-seven".