61667283479 has 8 divisors (see below), whose sum is σ = 65851605120. Its totient is φ = 57620152800.

The previous prime is 61667283473. The next prime is 61667283499. The reversal of 61667283479 is 97438276616.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61667283479 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 (61667283473) 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, 34296812 + ... + 34298609.

It is an arithmetic number, because the mean of its divisors is an integer number (8231450640).

Almost surely, 2^61667283479 is an apocalyptic number.

61667283479 is a deficient number, since it is larger than the sum of its proper divisors (4184321641).

61667283479 is a wasteful number, since it uses less digits than its factorization.

61667283479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68595481.

The product of its digits is 18289152, while the sum is 59.

The spelling of 61667283479 in words is "sixty-one billion, six hundred sixty-seven million, two hundred eighty-three thousand, four hundred seventy-nine".