61676364009 has 64 divisors (see below), whose sum is σ = 92776578048. Its totient is φ = 36196243200.

The previous prime is 61676363981. The next prime is 61676364023. The reversal of 61676364009 is 90046367616.

It is not a de Polignac number, because 61676364009 - 2²⁹ = 61139493097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61676364109) 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 63 ways as a sum of consecutive naturals, for example, 15687774 + ... + 15691704.

It is an arithmetic number, because the mean of its divisors is an integer number (1449634032).

Almost surely, 2^61676364009 is an apocalyptic number.

It is an amenable number.

61676364009 is a deficient number, since it is larger than the sum of its proper divisors (31100214039).

61676364009 is a wasteful number, since it uses less digits than its factorization.

61676364009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 61676364009 in words is "sixty-one billion, six hundred seventy-six million, three hundred sixty-four thousand, nine".