720900257149 has 8 divisors (see below), whose sum is σ = 724659871040. Its totient is φ = 717140894976.

The previous prime is 720900257089. The next prime is 720900257173. The reversal of 720900257149 is 941752009027.

It is a happy number.

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 720900257149 - 2¹⁵ = 720900224381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 720900257099 and 720900257108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720900237149) 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, 9272962 + ... + 9350380.

It is an arithmetic number, because the mean of its divisors is an integer number (90582483880).

Almost surely, 2^720900257149 is an apocalyptic number.

It is an amenable number.

720900257149 is a deficient number, since it is larger than the sum of its proper divisors (3759613891).

720900257149 is a wasteful number, since it uses less digits than its factorization.

720900257149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125859.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 720900257149 in words is "seven hundred twenty billion, nine hundred million, two hundred fifty-seven thousand, one hundred forty-nine".