716891369549 has 8 divisors (see below), whose sum is σ = 717571135872. Its totient is φ = 716211714400.

The previous prime is 716891369531. The next prime is 716891369567. The reversal of 716891369549 is 945963198617.

It is an interprime number because it is at equal distance from previous prime (716891369531) and next prime (716891369567).

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 716891369549 - 2¹² = 716891365453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (716891369569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18673724 + ... + 18712074.

It is an arithmetic number, because the mean of its divisors is an integer number (89696391984).

Almost surely, 2^716891369549 is an apocalyptic number.

It is an amenable number.

716891369549 is a deficient number, since it is larger than the sum of its proper divisors (679766323).

716891369549 is a wasteful number, since it uses less digits than its factorization.

716891369549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55587.

The product of its digits is 88179840, while the sum is 68.

The spelling of 716891369549 in words is "seven hundred sixteen billion, eight hundred ninety-one million, three hundred sixty-nine thousand, five hundred forty-nine".