2917942845 has 16 divisors (see below), whose sum is σ = 4716841920. Its totient is φ = 1540191744.

The previous prime is 2917942837. The next prime is 2917942847. The reversal of 2917942845 is 5482497192.

It is not a de Polignac number, because 2917942845 - 2³ = 2917942837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2917942847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1001275 + ... + 1004184.

It is an arithmetic number, because the mean of its divisors is an integer number (294802620).

Almost surely, 2^2917942845 is an apocalyptic number.

It is an amenable number.

2917942845 is a deficient number, since it is larger than the sum of its proper divisors (1798899075).

2917942845 is a wasteful number, since it uses less digits than its factorization.

2917942845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005564.

The product of its digits is 1451520, while the sum is 51.

The square root of 2917942845 is about 54017.9863101171. The cubic root of 2917942845 is about 1428.9781679141.

The spelling of 2917942845 in words is "two billion, nine hundred seventeen million, nine hundred forty-two thousand, eight hundred forty-five".