2129681515630 has 32 divisors (see below), whose sum is σ = 3957452144640. Its totient is φ = 824316492960.

The previous prime is 2129681515583. The next prime is 2129681515657. The reversal of 2129681515630 is 365151869212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3093331 + ... + 3718609.

It is an arithmetic number, because the mean of its divisors is an integer number (123670379520).

Almost surely, 2^{2129681515630} is an apocalyptic number.

2129681515630 is a deficient number, since it is larger than the sum of its proper divisors (1827770629010).

2129681515630 is a wasteful number, since it uses less digits than its factorization.

2129681515630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636304.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 2129681515630 in words is "two trillion, one hundred twenty-nine billion, six hundred eighty-one million, five hundred fifteen thousand, six hundred thirty".