731779246081 has 8 divisors (see below), whose sum is σ = 788158758464. Its totient is φ = 675412419600.

The previous prime is 731779246073. The next prime is 731779246117. The reversal of 731779246081 is 180642977137.

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 731779246081 - 2³ = 731779246073 is a prime.

It is a super-2 number, since 2×731779246081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731779246181) 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, 3051495 + ... + 3282556.

It is an arithmetic number, because the mean of its divisors is an integer number (98519844808).

Almost surely, 2^731779246081 is an apocalyptic number.

It is an amenable number.

731779246081 is a deficient number, since it is larger than the sum of its proper divisors (56379512383).

731779246081 is a wasteful number, since it uses less digits than its factorization.

731779246081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342951.

The product of its (nonzero) digits is 3556224, while the sum is 55.

The spelling of 731779246081 in words is "seven hundred thirty-one billion, seven hundred seventy-nine million, two hundred forty-six thousand, eighty-one".