2620615745 has 24 divisors (see below), whose sum is σ = 3586306752. Its totient is φ = 1823016800.

The previous prime is 2620615727. The next prime is 2620615759. The reversal of 2620615745 is 5475160262.

It is not a de Polignac number, because 2620615745 - 2⁶ = 2620615681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2620615699 and 2620615708.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15941 + ... + 74130.

It is an arithmetic number, because the mean of its divisors is an integer number (149429448).

Almost surely, 2^2620615745 is an apocalyptic number.

It is an amenable number.

2620615745 is a deficient number, since it is larger than the sum of its proper divisors (965691007).

2620615745 is a wasteful number, since it uses less digits than its factorization.

2620615745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90133 (or 90110 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 2620615745 is about 51191.9500019290. The cubic root of 2620615745 is about 1378.6936712071.

The spelling of 2620615745 in words is "two billion, six hundred twenty million, six hundred fifteen thousand, seven hundred forty-five".