2642187801 has 16 divisors (see below), whose sum is σ = 3845622528. Its totient is φ = 1600309200.

The previous prime is 2642187799. The next prime is 2642187803. The reversal of 2642187801 is 1087812462.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2642187799) and next prime (2642187803).

It is not a de Polignac number, because 2642187801 - 2¹ = 2642187799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2642187801.

It is not an unprimeable number, because it can be changed into a prime (2642187803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29086 + ... + 78296.

It is an arithmetic number, because the mean of its divisors is an integer number (240351408).

Almost surely, 2^2642187801 is an apocalyptic number.

It is an amenable number.

2642187801 is a deficient number, since it is larger than the sum of its proper divisors (1203434727).

2642187801 is a wasteful number, since it uses less digits than its factorization.

2642187801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50852.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 2642187801 is about 51402.2159152696. The cubic root of 2642187801 is about 1382.4663241952.

The spelling of 2642187801 in words is "two billion, six hundred forty-two million, one hundred eighty-seven thousand, eight hundred one".