2678644023 has 8 divisors (see below), whose sum is σ = 3896209536. Its totient is φ = 1623420600.

The previous prime is 2678644019. The next prime is 2678644027. The reversal of 2678644023 is 3204468762.

It is an interprime number because it is at equal distance from previous prime (2678644019) and next prime (2678644027).

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

It is not a de Polignac number, because 2678644023 - 2² = 2678644019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2678644027) 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, 40585483 + ... + 40585548.

It is an arithmetic number, because the mean of its divisors is an integer number (487026192).

Almost surely, 2^2678644023 is an apocalyptic number.

2678644023 is a deficient number, since it is larger than the sum of its proper divisors (1217565513).

2678644023 is a wasteful number, since it uses less digits than its factorization.

2678644023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81171045.

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 2678644023 is about 51755.6182747342. The cubic root of 2678644023 is about 1388.7956068354.

The spelling of 2678644023 in words is "two billion, six hundred seventy-eight million, six hundred forty-four thousand, twenty-three".