2801780901 has 16 divisors (see below), whose sum is σ = 4157809920. Its totient is φ = 1864693440.

The previous prime is 2801780887. The next prime is 2801780941. The reversal of 2801780901 is 1090871082.

It is not a de Polignac number, because 2801780901 - 2¹³ = 2801772709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801780941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71485 + ... + 103506.

It is an arithmetic number, because the mean of its divisors is an integer number (259863120).

Almost surely, 2^2801780901 is an apocalyptic number.

It is an amenable number.

2801780901 is a deficient number, since it is larger than the sum of its proper divisors (1356029019).

2801780901 is a wasteful number, since it uses less digits than its factorization.

2801780901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175593 (or 175587 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 2801780901 is about 52931.8514790480. The cubic root of 2801780901 is about 1409.7585054947.

The spelling of 2801780901 in words is "two billion, eight hundred one million, seven hundred eighty thousand, nine hundred one".