2126912732138 has 8 divisors (see below), whose sum is σ = 3190560291360. Its totient is φ = 1063392635020.

The previous prime is 2126912732137. The next prime is 2126912732143. The reversal of 2126912732138 is 8312372196212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-6 number, since 6×2126912732138⁶ (a number of 75 digits) contains 666666 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2126912732092 and 2126912732101.

It is not an unprimeable number, because it can be changed into a prime (2126912732137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31823798 + ... + 31890561.

It is an arithmetic number, because the mean of its divisors is an integer number (398820036420).

Almost surely, 2^{2126912732138} is an apocalyptic number.

2126912732138 is a deficient number, since it is larger than the sum of its proper divisors (1063647559222).

2126912732138 is a wasteful number, since it uses less digits than its factorization.

2126912732138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63731052.

The product of its digits is 435456, while the sum is 47.

The spelling of 2126912732138 in words is "two trillion, one hundred twenty-six billion, nine hundred twelve million, seven hundred thirty-two thousand, one hundred thirty-eight".