616190497509 has 8 divisors (see below), whose sum is σ = 821592921600. Its totient is φ = 410790869216.

The previous prime is 616190497493. The next prime is 616190497519. The reversal of 616190497509 is 905794091616.

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 616190497509 - 2⁴ = 616190497493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616190497519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114984 + ... + 1116065.

It is an arithmetic number, because the mean of its divisors is an integer number (102699115200).

Almost surely, 2^616190497509 is an apocalyptic number.

It is an amenable number.

616190497509 is a deficient number, since it is larger than the sum of its proper divisors (205402424091).

616190497509 is a wasteful number, since it uses less digits than its factorization.

616190497509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397899.

The product of its (nonzero) digits is 3674160, while the sum is 57.

The spelling of 616190497509 in words is "six hundred sixteen billion, one hundred ninety million, four hundred ninety-seven thousand, five hundred nine".