2087729421044 has 6 divisors (see below), whose sum is σ = 3653526486834. Its totient is φ = 1043864710520.

The previous prime is 2087729421013. The next prime is 2087729421047. The reversal of 2087729421044 is 4401249277802.

It can be written as a sum of positive squares in only one way, i.e., 1531604256400 + 556125164644 = 1237580^2 + 745738^2 .

It is a super-2 number, since 2×2087729421044² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2087729420983 and 2087729421001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087729421047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260966177627 + ... + 260966177634.

It is an arithmetic number, because the mean of its divisors is an integer number (608921081139).

Almost surely, 2^{2087729421044} is an apocalyptic number.

It is an amenable number.

2087729421044 is a deficient number, since it is larger than the sum of its proper divisors (1565797065790).

2087729421044 is a wasteful number, since it uses less digits than its factorization.

2087729421044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521932355265 (or 521932355263 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 2087729421044 in words is "two trillion, eighty-seven billion, seven hundred twenty-nine million, four hundred twenty-one thousand, forty-four".