2077779477 has 8 divisors (see below), whose sum is σ = 2794889664. Its totient is φ = 1372927808.

The previous prime is 2077779469. The next prime is 2077779503. The reversal of 2077779477 is 7749777702.

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

It is a cyclic number.

It is not a de Polignac number, because 2077779477 - 2³ = 2077779469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2077779467) 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 7 ways as a sum of consecutive naturals, for example, 3064233 + ... + 3064910.

It is an arithmetic number, because the mean of its divisors is an integer number (349361208).

Almost surely, 2^2077779477 is an apocalyptic number.

It is an amenable number.

2077779477 is a deficient number, since it is larger than the sum of its proper divisors (717110187).

2077779477 is a wasteful number, since it uses less digits than its factorization.

2077779477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6129259.

The product of its (nonzero) digits is 8470728, while the sum is 57.

The square root of 2077779477 is about 45582.6664095026. Note that the first 3 decimals coincide. The cubic root of 2077779477 is about 1276.0464513132.

The spelling of 2077779477 in words is "two billion, seventy-seven million, seven hundred seventy-nine thousand, four hundred seventy-seven".