2774945901 has 48 divisors (see below), whose sum is σ = 4704471744. Its totient is φ = 1441794816.

The previous prime is 2774945897. The next prime is 2774945923. The reversal of 2774945901 is 1095494772.

It is not a de Polignac number, because 2774945901 - 2² = 2774945897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2774941901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 117201 + ... + 138873.

It is an arithmetic number, because the mean of its divisors is an integer number (98009828).

Almost surely, 2^2774945901 is an apocalyptic number.

2774945901 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2774945901 is a deficient number, since it is larger than the sum of its proper divisors (1929525843).

2774945901 is a wasteful number, since it uses less digits than its factorization.

2774945901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21770 (or 21763 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 2774945901 is about 52677.7552767769. The cubic root of 2774945901 is about 1405.2432469342.

The spelling of 2774945901 in words is "two billion, seven hundred seventy-four million, nine hundred forty-five thousand, nine hundred one".