61875070009 has 9 divisors (see below), whose sum is σ = 63431481711. Its totient is φ = 60355972080.

The previous prime is 61875069979. The next prime is 61875070063. The reversal of 61875070009 is 90007057816.

The square root of 61875070009 is 248747.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2981487609 + 58893582400 = 54603^2 + 242680^2 .

It is not a de Polignac number, because 61875070009 - 2¹⁹ = 61874545721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61875070079) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10195594 + ... + 10201660.

Almost surely, 2^61875070009 is an apocalyptic number.

61875070009 is the 248747-th square number.

61875070009 is the 124374-th centered octagonal number.

It is an amenable number.

61875070009 is a deficient number, since it is larger than the sum of its proper divisors (1556411702).

61875070009 is an frugal number, since it uses more digits than its factorization.

61875070009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12216 (or 6108 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 61875070009 in words is "sixty-one billion, eight hundred seventy-five million, seventy thousand, nine".