2642157267 has 8 divisors (see below), whose sum is σ = 3543972096. Its totient is φ = 1750890312.

The previous prime is 2642157263. The next prime is 2642157281. The reversal of 2642157267 is 7627512462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2642157267 - 2² = 2642157263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2642157263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2636383 + ... + 2637384.

It is an arithmetic number, because the mean of its divisors is an integer number (442996512).

Almost surely, 2^2642157267 is an apocalyptic number.

2642157267 is a deficient number, since it is larger than the sum of its proper divisors (901814829).

2642157267 is a wasteful number, since it uses less digits than its factorization.

2642157267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273937.

The product of its digits is 282240, while the sum is 42.

The square root of 2642157267 is about 51401.9189038697. The cubic root of 2642157267 is about 1382.4609987613.

The spelling of 2642157267 in words is "two billion, six hundred forty-two million, one hundred fifty-seven thousand, two hundred sixty-seven".