611421514505 has 8 divisors (see below), whose sum is σ = 743756582472. Its totient is φ = 482436701568.

The previous prime is 611421514481. The next prime is 611421514511. The reversal of 611421514505 is 505415124116.

It can be written as a sum of positive squares in 4 ways, for example, as 51922002496 + 559499512009 = 227864^2 + 747997^2 .

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 611421514505 - 2¹² = 611421510409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837563354 + ... + 837564083.

It is an arithmetic number, because the mean of its divisors is an integer number (92969572809).

Almost surely, 2^611421514505 is an apocalyptic number.

It is an amenable number.

611421514505 is a deficient number, since it is larger than the sum of its proper divisors (132335067967).

611421514505 is a wasteful number, since it uses less digits than its factorization.

611421514505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675127515.

The product of its (nonzero) digits is 24000, while the sum is 35.

The spelling of 611421514505 in words is "six hundred eleven billion, four hundred twenty-one million, five hundred fourteen thousand, five hundred five".