2670770645 has 4 divisors (see below), whose sum is σ = 3204924780. Its totient is φ = 2136616512.

The previous prime is 2670770591. The next prime is 2670770681. The reversal of 2670770645 is 5460770762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5460770762 = 2 ⋅2730385381.

It can be written as a sum of positive squares in 2 ways, for example, as 1415414884 + 1255355761 = 37622^2 + 35431^2 .

It is a cyclic number.

It is not a de Polignac number, because 2670770645 - 2⁶ = 2670770581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2670770596 and 2670770605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267077060 + ... + 267077069.

It is an arithmetic number, because the mean of its divisors is an integer number (801231195).

Almost surely, 2^2670770645 is an apocalyptic number.

It is an amenable number.

2670770645 is a deficient number, since it is larger than the sum of its proper divisors (534154135).

2670770645 is an equidigital number, since it uses as much as digits as its factorization.

2670770645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534154134.

The product of its (nonzero) digits is 493920, while the sum is 44.

The square root of 2670770645 is about 51679.4992719550. The cubic root of 2670770645 is about 1387.4335689862.

The spelling of 2670770645 in words is "two billion, six hundred seventy million, seven hundred seventy thousand, six hundred forty-five".