61205744293 has 8 divisors (see below), whose sum is σ = 61665163776. Its totient is φ = 60747772800.

The previous prime is 61205744287. The next prime is 61205744311. The reversal of 61205744293 is 39244750216.

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

It is a cyclic number.

It is not a de Polignac number, because 61205744293 - 2⁵ = 61205744261 is a prime.

It is a super-2 number, since 2×61205744293² (a number of 22 digits) contains 22 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 (61205744213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277068 + ... + 446293.

It is an arithmetic number, because the mean of its divisors is an integer number (7708145472).

Almost surely, 2^61205744293 is an apocalyptic number.

It is an amenable number.

61205744293 is a deficient number, since it is larger than the sum of its proper divisors (459419483).

61205744293 is a wasteful number, since it uses less digits than its factorization.

61205744293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723995.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 61205744293 in words is "sixty-one billion, two hundred five million, seven hundred forty-four thousand, two hundred ninety-three".