2664677998 has 4 divisors (see below), whose sum is σ = 3997017000. Its totient is φ = 1332338998.

The previous prime is 2664677989. The next prime is 2664678007. The reversal of 2664677998 is 8997764662.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2664677989) and next prime (2664678007).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666169498 + ... + 666169501.

It is an arithmetic number, because the mean of its divisors is an integer number (999254250).

Almost surely, 2^2664677998 is an apocalyptic number.

2664677998 is a deficient number, since it is larger than the sum of its proper divisors (1332339002).

2664677998 is a wasteful number, since it uses less digits than its factorization.

2664677998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332339001.

The product of its digits is 54867456, while the sum is 64.

The square root of 2664677998 is about 51620.5191566300. The cubic root of 2664677998 is about 1386.3777465147.

The spelling of 2664677998 in words is "two billion, six hundred sixty-four million, six hundred seventy-seven thousand, nine hundred ninety-eight".