2175775538542 has 16 divisors (see below), whose sum is σ = 3344048172864. Its totient is φ = 1061105248000.

The previous prime is 2175775538539. The next prime is 2175775538567. The reversal of 2175775538542 is 2458355775712.

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, 2756059 + ... + 3456502.

It is an arithmetic number, because the mean of its divisors is an integer number (209003010804).

Almost surely, 2^{2175775538542} is an apocalyptic number.

2175775538542 is a deficient number, since it is larger than the sum of its proper divisors (1168272634322).

2175775538542 is a wasteful number, since it uses less digits than its factorization.

2175775538542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6216875.

The product of its digits is 82320000, while the sum is 61.

The spelling of 2175775538542 in words is "two trillion, one hundred seventy-five billion, seven hundred seventy-five million, five hundred thirty-eight thousand, five hundred forty-two".