2677640739 has 16 divisors (see below), whose sum is σ = 3619539360. Its totient is φ = 1760520960.

The previous prime is 2677640723. The next prime is 2677640747. The reversal of 2677640739 is 9370467762.

It is a happy number.

It is not a de Polignac number, because 2677640739 - 2⁴ = 2677640723 is a prime.

It is a super-2 number, since 2×2677640739² = 14339519854304932242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2677640691 and 2677640700.

It is not an unprimeable number, because it can be changed into a prime (2677640239) 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 15 ways as a sum of consecutive naturals, for example, 93369 + ... + 118629.

It is an arithmetic number, because the mean of its divisors is an integer number (226221210).

Almost surely, 2^2677640739 is an apocalyptic number.

2677640739 is a deficient number, since it is larger than the sum of its proper divisors (941898621).

2677640739 is a wasteful number, since it uses less digits than its factorization.

2677640739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25750.

The product of its (nonzero) digits is 2667168, while the sum is 51.

The square root of 2677640739 is about 51745.9248540404. The cubic root of 2677640739 is about 1388.6221944177.

The spelling of 2677640739 in words is "two billion, six hundred seventy-seven million, six hundred forty thousand, seven hundred thirty-nine".