2180725537538 has 8 divisors (see below), whose sum is σ = 3413309537088. Its totient is φ = 1042955691844.

The previous prime is 2180725537451. The next prime is 2180725537559. The reversal of 2180725537538 is 8357355270812.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 23703538406 + ... + 23703538497.

It is an arithmetic number, because the mean of its divisors is an integer number (426663692136).

Almost surely, 2^{2180725537538} is an apocalyptic number.

2180725537538 is a deficient number, since it is larger than the sum of its proper divisors (1232583999550).

2180725537538 is a wasteful number, since it uses less digits than its factorization.

2180725537538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47407076928.

The product of its (nonzero) digits is 14112000, while the sum is 56.

The spelling of 2180725537538 in words is "two trillion, one hundred eighty billion, seven hundred twenty-five million, five hundred thirty-seven thousand, five hundred thirty-eight".