2121606042526 has 4 divisors (see below), whose sum is σ = 3182409063792. Its totient is φ = 1060803021262.

The previous prime is 2121606042469. The next prime is 2121606042553. The reversal of 2121606042526 is 6252406061212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530401510630 + ... + 530401510633.

It is an arithmetic number, because the mean of its divisors is an integer number (795602265948).

Almost surely, 2^{2121606042526} is an apocalyptic number.

2121606042526 is a deficient number, since it is larger than the sum of its proper divisors (1060803021266).

2121606042526 is a wasteful number, since it uses less digits than its factorization.

2121606042526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060803021265.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 2121606042526 in words is "two trillion, one hundred twenty-one billion, six hundred six million, forty-two thousand, five hundred twenty-six".