61749368726 has 8 divisors (see below), whose sum is σ = 96651185904. Its totient is φ = 29532306760.

The previous prime is 61749368701. The next prime is 61749368731. The reversal of 61749368726 is 62786394716.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 671188745 + ... + 671188836.

It is an arithmetic number, because the mean of its divisors is an integer number (12081398238).

Almost surely, 2^61749368726 is an apocalyptic number.

61749368726 is a deficient number, since it is larger than the sum of its proper divisors (34901817178).

61749368726 is a wasteful number, since it uses less digits than its factorization.

61749368726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342377606.

The product of its digits is 18289152, while the sum is 59.

The spelling of 61749368726 in words is "sixty-one billion, seven hundred forty-nine million, three hundred sixty-eight thousand, seven hundred twenty-six".