2620914989 has 24 divisors (see below), whose sum is σ = 3343003488. Its totient is φ = 2031822240.

The previous prime is 2620914971. The next prime is 2620915001. The reversal of 2620914989 is 9894190262.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2620914989 is a prime.

It is a super-3 number, since 3×2620914989³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620914949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93842 + ... + 118524.

It is an arithmetic number, because the mean of its divisors is an integer number (139291812).

Almost surely, 2^2620914989 is an apocalyptic number.

It is an amenable number.

2620914989 is a deficient number, since it is larger than the sum of its proper divisors (722088499).

2620914989 is a wasteful number, since it uses less digits than its factorization.

2620914989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24905 (or 24898 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 2620914989 is about 51194.8726827209. The cubic root of 2620914989 is about 1378.7461461655.

The spelling of 2620914989 in words is "two billion, six hundred twenty million, nine hundred fourteen thousand, nine hundred eighty-nine".