61266886851 has 8 divisors (see below), whose sum is σ = 81690351120. Its totient is φ = 40844006912.

The previous prime is 61266886771. The next prime is 61266886861. The reversal of 61266886851 is 15868866216.

It is a happy number.

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 61266886851 - 2⁹ = 61266886339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61266886791 and 61266886800.

It is not an unprimeable number, because it can be changed into a prime (61266886861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259195 + ... + 435563.

It is an arithmetic number, because the mean of its divisors is an integer number (10211293890).

Almost surely, 2^61266886851 is an apocalyptic number.

61266886851 is a deficient number, since it is larger than the sum of its proper divisors (20423464269).

61266886851 is a wasteful number, since it uses less digits than its factorization.

61266886851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292165.

The product of its digits is 6635520, while the sum is 57.

The spelling of 61266886851 in words is "sixty-one billion, two hundred sixty-six million, eight hundred eighty-six thousand, eight hundred fifty-one".