2720946237449 has 4 divisors (see below), whose sum is σ = 2968304986320. Its totient is φ = 2473587488580.

The previous prime is 2720946237407. The next prime is 2720946237461. The reversal of 2720946237449 is 9447326490272.

It is a happy number.

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 not a de Polignac number, because 2720946237449 - 2¹² = 2720946233353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2720946237749) 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, 123679374419 + ... + 123679374440.

It is an arithmetic number, because the mean of its divisors is an integer number (742076246580).

Almost surely, 2^{2720946237449} is an apocalyptic number.

It is an amenable number.

2720946237449 is a deficient number, since it is larger than the sum of its proper divisors (247358748871).

2720946237449 is a wasteful number, since it uses less digits than its factorization.

2720946237449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247358748870.

The product of its (nonzero) digits is 36578304, while the sum is 59.

The spelling of 2720946237449 in words is "two trillion, seven hundred twenty billion, nine hundred forty-six million, two hundred thirty-seven thousand, four hundred forty-nine".