2640005877 has 8 divisors (see below), whose sum is σ = 3522313120. Its totient is φ = 1758851280.

The previous prime is 2640005873. The next prime is 2640005881. The reversal of 2640005877 is 7785000462.

It is an interprime number because it is at equal distance from previous prime (2640005873) and next prime (2640005881).

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

It is not a de Polignac number, because 2640005877 - 2² = 2640005873 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 (2640005873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282802 + ... + 291987.

It is an arithmetic number, because the mean of its divisors is an integer number (440289140).

Almost surely, 2^2640005877 is an apocalyptic number.

It is an amenable number.

2640005877 is a deficient number, since it is larger than the sum of its proper divisors (882307243).

2640005877 is a wasteful number, since it uses less digits than its factorization.

2640005877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576323.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 2640005877 is about 51380.9875051074. The cubic root of 2640005877 is about 1382.0856715711.

The spelling of 2640005877 in words is "two billion, six hundred forty million, five thousand, eight hundred seventy-seven".