2642507481 has 8 divisors (see below), whose sum is σ = 3526931520. Its totient is φ = 1759877552.

The previous prime is 2642507473. The next prime is 2642507501. The reversal of 2642507481 is 1847052462.

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

It is a cyclic number.

It is not a de Polignac number, because 2642507481 - 2³ = 2642507473 is a prime.

It is a super-2 number, since 2×2642507481² = 13965691574281930722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2642507431) 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 7 ways as a sum of consecutive naturals, for example, 445086 + ... + 450983.

It is an arithmetic number, because the mean of its divisors is an integer number (440866440).

Almost surely, 2^2642507481 is an apocalyptic number.

It is an amenable number.

2642507481 is a deficient number, since it is larger than the sum of its proper divisors (884424039).

2642507481 is an equidigital number, since it uses as much as digits as its factorization.

2642507481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897055.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2642507481 is about 51405.3254147856. The cubic root of 2642507481 is about 1382.5220771097.

The spelling of 2642507481 in words is "two billion, six hundred forty-two million, five hundred seven thousand, four hundred eighty-one".