2121526171264 has 32 divisors (see below), whose sum is σ = 4228843500000. Its totient is φ = 1060169371392.

The previous prime is 2121526171243. The next prime is 2121526171277. The reversal of 2121526171264 is 4621716251212.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4408764 + ... + 4866235.

It is an arithmetic number, because the mean of its divisors is an integer number (132151359375).

Almost surely, 2^{2121526171264} is an apocalyptic number.

It is an amenable number.

2121526171264 is a deficient number, since it is larger than the sum of its proper divisors (2107317328736).

2121526171264 is an equidigital number, since it uses as much as digits as its factorization.

2121526171264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9276800 (or 9276788 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The spelling of 2121526171264 in words is "two trillion, one hundred twenty-one billion, five hundred twenty-six million, one hundred seventy-one thousand, two hundred sixty-four".