2861498021109 has 16 divisors (see below), whose sum is σ = 4695791624832. Its totient is φ = 1509361593408.

The previous prime is 2861498021071. The next prime is 2861498021141. The reversal of 2861498021109 is 9011208941682.

It is not a de Polignac number, because 2861498021109 - 2⁹ = 2861498020597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861498021609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5240838594 + ... + 5240839139.

It is an arithmetic number, because the mean of its divisors is an integer number (293486976552).

Almost surely, 2^{2861498021109} is an apocalyptic number.

It is an amenable number.

2861498021109 is a deficient number, since it is larger than the sum of its proper divisors (1834293603723).

2861498021109 is a wasteful number, since it uses less digits than its factorization.

2861498021109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481677756.

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 2861498021109 in words is "two trillion, eight hundred sixty-one billion, four hundred ninety-eight million, twenty-one thousand, one hundred nine".