61941727747 has 8 divisors (see below), whose sum is σ = 63296476992. Its totient is φ = 60588513600.

The previous prime is 61941727723. The next prime is 61941727759. The reversal of 61941727747 is 74772714916.

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 61941727747 - 2⁷ = 61941727619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61941727847) 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, 302004 + ... + 463777.

It is an arithmetic number, because the mean of its divisors is an integer number (7912059624).

Almost surely, 2^61941727747 is an apocalyptic number.

61941727747 is a deficient number, since it is larger than the sum of its proper divisors (1354749245).

61941727747 is a wasteful number, since it uses less digits than its factorization.

61941727747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767549.

The product of its digits is 4148928, while the sum is 55.

The spelling of 61941727747 in words is "sixty-one billion, nine hundred forty-one million, seven hundred twenty-seven thousand, seven hundred forty-seven".