61468967493 has 6 divisors (see below), whose sum is σ = 88788508614. Its totient is φ = 40979311656.

The previous prime is 61468967491. The next prime is 61468967507. The reversal of 61468967493 is 39476986416.

61468967493 is a `hidden beast` number, since 6 + 1 + 4 + 6 + 89 + 67 + 493 = 666.

It can be written as a sum of positive squares in only one way, i.e., 55130100804 + 6338866689 = 234798^2 + 79617^2 .

It is not a de Polignac number, because 61468967493 - 2¹ = 61468967491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61468967493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61468967491) 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 5 ways as a sum of consecutive naturals, for example, 3414942630 + ... + 3414942647.

It is an arithmetic number, because the mean of its divisors is an integer number (14798084769).

Almost surely, 2^61468967493 is an apocalyptic number.

It is an amenable number.

61468967493 is a deficient number, since it is larger than the sum of its proper divisors (27319541121).

61468967493 is a wasteful number, since it uses less digits than its factorization.

61468967493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829885283 (or 6829885280 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 61468967493 in words is "sixty-one billion, four hundred sixty-eight million, nine hundred sixty-seven thousand, four hundred ninety-three".