2054736779 has 8 divisors (see below), whose sum is σ = 2173135680. Its totient is φ = 1937363400.

The previous prime is 2054736769. The next prime is 2054736787. The reversal of 2054736779 is 9776374502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2054736779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2054736709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252257 + ... + 260274.

It is an arithmetic number, because the mean of its divisors is an integer number (271641960).

Almost surely, 2^2054736779 is an apocalyptic number.

2054736779 is a deficient number, since it is larger than the sum of its proper divisors (118398901).

2054736779 is a wasteful number, since it uses less digits than its factorization.

2054736779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512761.

The product of its (nonzero) digits is 2222640, while the sum is 50.

The square root of 2054736779 is about 45329.2044823202. The cubic root of 2054736779 is about 1271.3117615900.

The spelling of 2054736779 in words is "two billion, fifty-four million, seven hundred thirty-six thousand, seven hundred seventy-nine".