4642121467261 has 16 divisors (see below), whose sum is σ = 4667617347120. Its totient is φ = 4616701273600.

The previous prime is 4642121467241. The next prime is 4642121467309. The reversal of 4642121467261 is 1627641212464.

It can be written as a sum of positive squares in 8 ways, for example, as 720790812036 + 3921330655225 = 848994^2 + 1980235^2 .

It is a cyclic number.

It is not a de Polignac number, because 4642121467261 - 2⁵ = 4642121467229 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 (4642121467231) 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, 308377611 + ... + 308392663.

It is an arithmetic number, because the mean of its divisors is an integer number (291726084195).

Almost surely, 2^{4642121467261} is an apocalyptic number.

It is an amenable number.

4642121467261 is a deficient number, since it is larger than the sum of its proper divisors (25495879859).

4642121467261 is a wasteful number, since it uses less digits than its factorization.

4642121467261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17456.

The product of its digits is 774144, while the sum is 46.

The spelling of 4642121467261 in words is "four trillion, six hundred forty-two billion, one hundred twenty-one million, four hundred sixty-seven thousand, two hundred sixty-one".