61649277743683 has 8 divisors (see below), whose sum is σ = 70456369581152. Its totient is φ = 52842198946176.

The previous prime is 61649277743671. The next prime is 61649277743693. The reversal of 61649277743683 is 38634777294616.

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 61649277743683 - 2¹³ = 61649277735491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61649277743653) 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, 11070541 + ... + 15679777.

It is an arithmetic number, because the mean of its divisors is an integer number (8807046197644).

Almost surely, 2^{61649277743683} is an apocalyptic number.

61649277743683 is a deficient number, since it is larger than the sum of its proper divisors (8807091837469).

61649277743683 is a wasteful number, since it uses less digits than its factorization.

61649277743683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519981.

The product of its digits is 1536288768, while the sum is 73.

The spelling of 61649277743683 in words is "sixty-one trillion, six hundred forty-nine billion, two hundred seventy-seven million, seven hundred forty-three thousand, six hundred eighty-three".