2642642321407 has 32 divisors (see below), whose sum is σ = 2982574301184. Its totient is φ = 2319680613600.

The previous prime is 2642642321383. The next prime is 2642642321419. The reversal of 2642642321407 is 7041232462462.

It is a cyclic number.

It is not a de Polignac number, because 2642642321407 - 2²⁷ = 2642508103679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642642421407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312106588 + ... + 312115054.

It is an arithmetic number, because the mean of its divisors is an integer number (93205446912).

Almost surely, 2^{2642642321407} is an apocalyptic number.

2642642321407 is a deficient number, since it is larger than the sum of its proper divisors (339931979777).

2642642321407 is a wasteful number, since it uses less digits than its factorization.

2642642321407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459.

The product of its (nonzero) digits is 774144, while the sum is 43.

Adding to 2642642321407 its reverse (7041232462462), we get a palindrome (9683874783869).

The spelling of 2642642321407 in words is "two trillion, six hundred forty-two billion, six hundred forty-two million, three hundred twenty-one thousand, four hundred seven".