720930852491 has 4 divisors (see below), whose sum is σ = 720977642112. Its totient is φ = 720884062872.

The previous prime is 720930852461. The next prime is 720930852511. The reversal of 720930852491 is 194258039027.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720930852491 is a prime.

It is a super-3 number, since 3×720930852491³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720930852401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23371691 + ... + 23402516.

It is an arithmetic number, because the mean of its divisors is an integer number (180244410528).

Almost surely, 2^720930852491 is an apocalyptic number.

720930852491 is a deficient number, since it is larger than the sum of its proper divisors (46789621).

720930852491 is a wasteful number, since it uses less digits than its factorization.

720930852491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46789620.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 720930852491 in words is "seven hundred twenty billion, nine hundred thirty million, eight hundred fifty-two thousand, four hundred ninety-one".