61400786180733 has 48 divisors (see below), whose sum is σ = 92461092796800. Its totient is φ = 40718017267200.

The previous prime is 61400786180711. The next prime is 61400786180779. The reversal of 61400786180733 is 33708168700416.

61400786180733 is a `hidden beast` number, since 6 + 1 + 400 + 78 + 61 + 80 + 7 + 33 = 666.

It is not a de Polignac number, because 61400786180733 - 2¹⁰ = 61400786179709 is a prime.

It is a super-2 number, since 2×61400786180733² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 61400786180733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61400786181733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34104433 + ... + 35859641.

It is an arithmetic number, because the mean of its divisors is an integer number (1926272766600).

Almost surely, 2^{61400786180733} is an apocalyptic number.

It is an amenable number.

61400786180733 is a deficient number, since it is larger than the sum of its proper divisors (31060306616067).

61400786180733 is a wasteful number, since it uses less digits than its factorization.

61400786180733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755984 (or 1755972 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 61400786180733 in words is "sixty-one trillion, four hundred billion, seven hundred eighty-six million, one hundred eighty thousand, seven hundred thirty-three".