2642001605 has 16 divisors (see below), whose sum is σ = 3312900864. Its totient is φ = 2018860800.

The previous prime is 2642001589. The next prime is 2642001617. The reversal of 2642001605 is 5061002462.

It is not a de Polignac number, because 2642001605 - 2⁴ = 2642001589 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67805 + ... + 99405.

It is an arithmetic number, because the mean of its divisors is an integer number (207056304).

Almost surely, 2^2642001605 is an apocalyptic number.

It is an amenable number.

2642001605 is a deficient number, since it is larger than the sum of its proper divisors (670899259).

2642001605 is a wasteful number, since it uses less digits than its factorization.

2642001605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32356.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2642001605 is about 51400.4047163055. The cubic root of 2642001605 is about 1382.4338491195.

The spelling of 2642001605 in words is "two billion, six hundred forty-two million, one thousand, six hundred five".