2077749547 has 4 divisors (see below), whose sum is σ = 2079077056. Its totient is φ = 2076422040.

The previous prime is 2077749523. The next prime is 2077749587. The reversal of 2077749547 is 7459477702.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2077749547 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2077749494 and 2077749503.

It is not an unprimeable number, because it can be changed into a prime (2077749517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661404 + ... + 664537.

It is an arithmetic number, because the mean of its divisors is an integer number (519769264).

Almost surely, 2^2077749547 is an apocalyptic number.

2077749547 is a deficient number, since it is larger than the sum of its proper divisors (1327509).

2077749547 is a wasteful number, since it uses less digits than its factorization.

2077749547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327508.

The product of its (nonzero) digits is 3457440, while the sum is 52.

The square root of 2077749547 is about 45582.3381036998. The cubic root of 2077749547 is about 1276.0403242187.

The spelling of 2077749547 in words is "two billion, seventy-seven million, seven hundred forty-nine thousand, five hundred forty-seven".