61744056471 has 48 divisors (see below), whose sum is σ = 92745662464. Its totient is φ = 39550617792.

The previous prime is 61744056469. The next prime is 61744056527. The reversal of 61744056471 is 17465044716.

61744056471 is a `hidden beast` number, since 6 + 17 + 4 + 4 + 0 + 564 + 71 = 666.

It is not a de Polignac number, because 61744056471 - 2¹ = 61744056469 is a prime.

It is a super-3 number, since 3×61744056471³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61744056431) 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 47 ways as a sum of consecutive naturals, for example, 9427620 + ... + 9434166.

Almost surely, 2^61744056471 is an apocalyptic number.

61744056471 is a deficient number, since it is larger than the sum of its proper divisors (31001605993).

61744056471 is a wasteful number, since it uses less digits than its factorization.

61744056471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6940 (or 6937 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 61744056471 in words is "sixty-one billion, seven hundred forty-four million, fifty-six thousand, four hundred seventy-one".