61069822687 has 32 divisors (see below), whose sum is σ = 66102220800. Its totient is φ = 56215323648.

The previous prime is 61069822651. The next prime is 61069822699. The reversal of 61069822687 is 78622896016.

It is not a de Polignac number, because 61069822687 - 2¹⁵ = 61069789919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61069822607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66452014 + ... + 66452932.

It is an arithmetic number, because the mean of its divisors is an integer number (2065694400).

Almost surely, 2^61069822687 is an apocalyptic number.

61069822687 is a deficient number, since it is larger than the sum of its proper divisors (5032398113).

61069822687 is a wasteful number, since it uses less digits than its factorization.

61069822687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 61069822687 in words is "sixty-one billion, sixty-nine million, eight hundred twenty-two thousand, six hundred eighty-seven".