616986715394 has 32 divisors (see below), whose sum is σ = 1060983736320. Its totient is φ = 263600486352.

The previous prime is 616986715343. The next prime is 616986715403. The reversal of 616986715394 is 493517689616.

It is a self number, because there is not a number n which added to its sum of digits gives 616986715394.

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 15 ways as a sum of consecutive naturals, for example, 11662727 + ... + 11715509.

It is an arithmetic number, because the mean of its divisors is an integer number (33155741760).

Almost surely, 2^616986715394 is an apocalyptic number.

616986715394 is a deficient number, since it is larger than the sum of its proper divisors (443997020926).

616986715394 is a wasteful number, since it uses less digits than its factorization.

616986715394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55374.

The product of its digits is 58786560, while the sum is 65.

The spelling of 616986715394 in words is "six hundred sixteen billion, nine hundred eighty-six million, seven hundred fifteen thousand, three hundred ninety-four".