720051886889 has 4 divisors (see below), whose sum is σ = 757949354640. Its totient is φ = 682154419140.

The previous prime is 720051886877. The next prime is 720051886973. The reversal of 720051886889 is 988688150027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720051886889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720051888889) 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, 18948733847 + ... + 18948733884.

It is an arithmetic number, because the mean of its divisors is an integer number (189487338660).

Almost surely, 2^720051886889 is an apocalyptic number.

It is an amenable number.

720051886889 is a deficient number, since it is larger than the sum of its proper divisors (37897467751).

720051886889 is a wasteful number, since it uses less digits than its factorization.

720051886889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37897467750.

The product of its (nonzero) digits is 15482880, while the sum is 62.

The spelling of 720051886889 in words is "seven hundred twenty billion, fifty-one million, eight hundred eighty-six thousand, eight hundred eighty-nine".