2127915072381 has 16 divisors (see below), whose sum is σ = 3297495513600. Its totient is φ = 1195342122288.

The previous prime is 2127915072377. The next prime is 2127915072383. The reversal of 2127915072381 is 1832705197212.

It is not a de Polignac number, because 2127915072381 - 2² = 2127915072377 is a prime.

It is a super-2 number, since 2×2127915072381² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2127915072381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127915072383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858721551 + ... + 858724028.

It is an arithmetic number, because the mean of its divisors is an integer number (206093469600).

Almost surely, 2^{2127915072381} is an apocalyptic number.

2127915072381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2127915072381 is a deficient number, since it is larger than the sum of its proper divisors (1169580441219).

2127915072381 is a wasteful number, since it uses less digits than its factorization.

2127915072381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717445648.

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 2127915072381 in words is "two trillion, one hundred twenty-seven billion, nine hundred fifteen million, seventy-two thousand, three hundred eighty-one".