2988691465 has 16 divisors (see below), whose sum is σ = 3752869968. Its totient is φ = 2282432256.

The previous prime is 2988691463. The next prime is 2988691471. The reversal of 2988691465 is 5641968892.

It can be written as a sum of positive squares in 8 ways, for example, as 54952569 + 2933738896 = 7413^2 + 54164^2 .

It is a cyclic number.

It is not a de Polignac number, because 2988691465 - 2¹ = 2988691463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2988691463) 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, 142602 + ... + 162211.

It is an arithmetic number, because the mean of its divisors is an integer number (234554373).

Almost surely, 2^2988691465 is an apocalyptic number.

It is an amenable number.

2988691465 is a deficient number, since it is larger than the sum of its proper divisors (764178503).

2988691465 is a wasteful number, since it uses less digits than its factorization.

2988691465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304908.

The product of its digits is 7464960, while the sum is 58.

The square root of 2988691465 is about 54668.9259543299. The cubic root of 2988691465 is about 1440.4350963065.

The spelling of 2988691465 in words is "two billion, nine hundred eighty-eight million, six hundred ninety-one thousand, four hundred sixty-five".