2129777429136 has 40 divisors (see below), whose sum is σ = 6287914315584. Its totient is φ = 608507836800.

The previous prime is 2129777429089. The next prime is 2129777429161. The reversal of 2129777429136 is 6319247779212.

It is a self number, because there is not a number n which added to its sum of digits gives 2129777429136.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3169311315 + ... + 3169311986.

Almost surely, 2^{2129777429136} is an apocalyptic number.

It is an amenable number.

2129777429136 is an abundant number, since it is smaller than the sum of its proper divisors (4158136886448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2129777429136 is a wasteful number, since it uses less digits than its factorization.

2129777429136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338623319 (or 6338623313 counting only the distinct ones).

The product of its digits is 16003008, while the sum is 60.

The spelling of 2129777429136 in words is "two trillion, one hundred twenty-nine billion, seven hundred seventy-seven million, four hundred twenty-nine thousand, one hundred thirty-six".