21576572734070 has 16 divisors (see below), whose sum is σ = 38857318077600. Its totient is φ = 8626298614464.

The previous prime is 21576572734061. The next prime is 21576572734081. The reversal of 21576572734070 is 7043727567512.

It is a super-2 number, since 2×21576572734070² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21576572733997 and 21576572734015.

It is a congruent number.

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, 541288970 + ... + 541328829.

It is an arithmetic number, because the mean of its divisors is an integer number (2428582379850).

Almost surely, 2^{21576572734070} is an apocalyptic number.

21576572734070 is a deficient number, since it is larger than the sum of its proper divisors (17280745343530).

21576572734070 is a wasteful number, since it uses less digits than its factorization.

21576572734070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082619799.

The product of its (nonzero) digits is 17287200, while the sum is 56.

The spelling of 21576572734070 in words is "twenty-one trillion, five hundred seventy-six billion, five hundred seventy-two million, seven hundred thirty-four thousand, seventy".