61067279999 has 16 divisors (see below), whose sum is σ = 68441523360. Its totient is φ = 53997788160.

The previous prime is 61067279971. The next prime is 61067280007. The reversal of 61067279999 is 99997276016.

It is a de Polignac number, because none of the positive numbers 2^k-61067279999 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 (61067279909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1325747 + ... + 1371035.

It is an arithmetic number, because the mean of its divisors is an integer number (4277595210).

Almost surely, 2^61067279999 is an apocalyptic number.

61067279999 is a deficient number, since it is larger than the sum of its proper divisors (7374243361).

61067279999 is a wasteful number, since it uses less digits than its factorization.

61067279999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48650.

The product of its (nonzero) digits is 23147208, while the sum is 65.

The spelling of 61067279999 in words is "sixty-one billion, sixty-seven million, two hundred seventy-nine thousand, nine hundred ninety-nine".