2770671638 has 64 divisors (see below), whose sum is σ = 4940974080. Its totient is φ = 1140936192.

The previous prime is 2770671601. The next prime is 2770671641. The reversal of 2770671638 is 8361760772.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2770671592 and 2770671601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7549331 + ... + 7549697.

It is an arithmetic number, because the mean of its divisors is an integer number (77202720).

Almost surely, 2^2770671638 is an apocalyptic number.

2770671638 is a deficient number, since it is larger than the sum of its proper divisors (2170302442).

2770671638 is a wasteful number, since it uses less digits than its factorization.

2770671638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621.

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 2770671638 is about 52637.1697377433. The cubic root of 2770671638 is about 1404.5213751143.

The spelling of 2770671638 in words is "two billion, seven hundred seventy million, six hundred seventy-one thousand, six hundred thirty-eight".