61102855277 has 8 divisors (see below), whose sum is σ = 63153998616. Its totient is φ = 59072749632.

The previous prime is 61102855259. The next prime is 61102855283. The reversal of 61102855277 is 77255820116.

It can be written as a sum of positive squares in 4 ways, for example, as 7625830276 + 53477025001 = 87326^2 + 231251^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 61102855277 - 2⁶ = 61102855213 is a prime.

It is a super-3 number, since 3×61102855277³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61102855237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5253518 + ... + 5265135.

It is an arithmetic number, because the mean of its divisors is an integer number (7894249827).

Almost surely, 2^61102855277 is an apocalyptic number.

It is an amenable number.

61102855277 is a deficient number, since it is larger than the sum of its proper divisors (2051143339).

61102855277 is a wasteful number, since it uses less digits than its factorization.

61102855277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518847.

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 61102855277 in words is "sixty-one billion, one hundred two million, eight hundred fifty-five thousand, two hundred seventy-seven".