614718721601 has 4 divisors (see below), whose sum is σ = 616682679492. Its totient is φ = 612754763712.

The previous prime is 614718721553. The next prime is 614718721609. The reversal of 614718721601 is 106127817416.

It is a Cunningham number, because it is equal to 784040²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3921765376 + 610796956225 = 62624^2 + 781535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-614718721601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (614718721609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981978476 + ... + 981979101.

It is an arithmetic number, because the mean of its divisors is an integer number (154170669873).

Almost surely, 2^614718721601 is an apocalyptic number.

It is an amenable number.

614718721601 is a deficient number, since it is larger than the sum of its proper divisors (1963957891).

614718721601 is a wasteful number, since it uses less digits than its factorization.

614718721601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963957890.

The product of its (nonzero) digits is 112896, while the sum is 44.

The spelling of 614718721601 in words is "six hundred fourteen billion, seven hundred eighteen million, seven hundred twenty-one thousand, six hundred one".