61072223885 has 8 divisors (see below), whose sum is σ = 73372189176. Its totient is φ = 48800765440.

The previous prime is 61072223867. The next prime is 61072223923. The reversal of 61072223885 is 58832227016.

It can be written as a sum of positive squares in 4 ways, for example, as 40893737284 + 20178486601 = 202222^2 + 142051^2 .

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

It is not a de Polignac number, because 61072223885 - 2¹⁴ = 61072207501 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 7121996 + ... + 7130565.

It is an arithmetic number, because the mean of its divisors is an integer number (9171523647).

Almost surely, 2^61072223885 is an apocalyptic number.

It is an amenable number.

61072223885 is a deficient number, since it is larger than the sum of its proper divisors (12299965291).

61072223885 is a wasteful number, since it uses less digits than its factorization.

61072223885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14253423.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 61072223885 in words is "sixty-one billion, seventy-two million, two hundred twenty-three thousand, eight hundred eighty-five".