2615620985 has 8 divisors (see below), whose sum is σ = 3211739520. Its totient is φ = 2043833904.

The previous prime is 2615620979. The next prime is 2615620993. The reversal of 2615620985 is 5890265162.

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 2615620985 - 2⁸ = 2615620729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6082625 + ... + 6083054.

It is an arithmetic number, because the mean of its divisors is an integer number (401467440).

Almost surely, 2^2615620985 is an apocalyptic number.

It is an amenable number.

2615620985 is a deficient number, since it is larger than the sum of its proper divisors (596118535).

2615620985 is a wasteful number, since it uses less digits than its factorization.

2615620985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12165727.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 2615620985 is about 51143.1421111374. The cubic root of 2615620985 is about 1377.8172075241.

The spelling of 2615620985 in words is "two billion, six hundred fifteen million, six hundred twenty thousand, nine hundred eighty-five".