2618720401 has 8 divisors (see below), whose sum is σ = 2871144000. Its totient is φ = 2368689840.

The previous prime is 2618720383. The next prime is 2618720431. The reversal of 2618720401 is 1040278162.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2618720401 - 2⁹ = 2618719889 is a prime.

It is a super-2 number, since 2×2618720401² = 13715393077227201602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2618720431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595966 + ... + 600343.

It is an arithmetic number, because the mean of its divisors is an integer number (358893000).

Almost surely, 2^2618720401 is an apocalyptic number.

It is an amenable number.

2618720401 is a deficient number, since it is larger than the sum of its proper divisors (252423599).

2618720401 is a wasteful number, since it uses less digits than its factorization.

2618720401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196519.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 2618720401 is about 51173.4345241747. The cubic root of 2618720401 is about 1378.3612138441.

Adding to 2618720401 its reverse (1040278162), we get a palindrome (3658998563).

The spelling of 2618720401 in words is "two billion, six hundred eighteen million, seven hundred twenty thousand, four hundred one".