2664634477 has 4 divisors (see below), whose sum is σ = 2678024800. Its totient is φ = 2651244156.

The previous prime is 2664634459. The next prime is 2664634501. The reversal of 2664634477 is 7744364662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2664634477 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2664634477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2664634447) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6694863 + ... + 6695260.

It is an arithmetic number, because the mean of its divisors is an integer number (669506200).

Almost surely, 2^2664634477 is an apocalyptic number.

It is an amenable number.

2664634477 is a deficient number, since it is larger than the sum of its proper divisors (13390323).

2664634477 is a wasteful number, since it uses less digits than its factorization.

2664634477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13390322.

The product of its digits is 4064256, while the sum is 49.

The square root of 2664634477 is about 51620.0976074242. The cubic root of 2664634477 is about 1386.3701987766.

The spelling of 2664634477 in words is "two billion, six hundred sixty-four million, six hundred thirty-four thousand, four hundred seventy-seven".