720098447861 has 16 divisors (see below), whose sum is σ = 780918364800. Its totient is φ = 660056473920.

The previous prime is 720098447839. The next prime is 720098447891. The reversal of 720098447861 is 168744890027.

It is a cyclic number.

It is not a de Polignac number, because 720098447861 - 2¹⁴ = 720098431477 is a prime.

It is a super-2 number, since 2×720098447861² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720098447797 and 720098447806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720098447891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6966446 + ... + 7069056.

It is an arithmetic number, because the mean of its divisors is an integer number (48807397800).

Almost surely, 2^720098447861 is an apocalyptic number.

It is an amenable number.

720098447861 is a deficient number, since it is larger than the sum of its proper divisors (60819916939).

720098447861 is a wasteful number, since it uses less digits than its factorization.

720098447861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106396.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 720098447861 in words is "seven hundred twenty billion, ninety-eight million, four hundred forty-seven thousand, eight hundred sixty-one".