2127191708949 has 16 divisors (see below), whose sum is σ = 2864680529664. Its totient is φ = 1403918712000.

The previous prime is 2127191708947. The next prime is 2127191708959. The reversal of 2127191708949 is 9498071917212.

It is not a de Polignac number, because 2127191708949 - 2¹ = 2127191708947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2127191708892 and 2127191708901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127191708947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2138247 + ... + 2970939.

It is an arithmetic number, because the mean of its divisors is an integer number (179042533104).

Almost surely, 2^{2127191708949} is an apocalyptic number.

It is an amenable number.

2127191708949 is a deficient number, since it is larger than the sum of its proper divisors (737488820715).

2127191708949 is a wasteful number, since it uses less digits than its factorization.

2127191708949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841228.

The product of its (nonzero) digits is 4572288, while the sum is 60.

The spelling of 2127191708949 in words is "two trillion, one hundred twenty-seven billion, one hundred ninety-one million, seven hundred eight thousand, nine hundred forty-nine".