2138146212477 has 64 divisors (see below), whose sum is σ = 3426918727680. Its totient is φ = 1171308600000.

The previous prime is 2138146212473. The next prime is 2138146212487. The reversal of 2138146212477 is 7742126418312.

It is not a de Polignac number, because 2138146212477 - 2² = 2138146212473 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2138146212473) 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 63 ways as a sum of consecutive naturals, for example, 605352 + ... + 2154702.

It is an arithmetic number, because the mean of its divisors is an integer number (53545605120).

Almost surely, 2^{2138146212477} is an apocalyptic number.

It is an amenable number.

2138146212477 is a deficient number, since it is larger than the sum of its proper divisors (1288772515203).

2138146212477 is a wasteful number, since it uses less digits than its factorization.

2138146212477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549486.

The product of its digits is 903168, while the sum is 48.

The spelling of 2138146212477 in words is "two trillion, one hundred thirty-eight billion, one hundred forty-six million, two hundred twelve thousand, four hundred seventy-seven".