462778030261 has 4 divisors (see below), whose sum is σ = 467977783500. Its totient is φ = 457578277024.

The previous prime is 462778030259. The next prime is 462778030279. The reversal of 462778030261 is 162030877264.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135714139236 + 327063891025 = 368394^2 + 571895^2 .

It is a cyclic number.

It is not a de Polignac number, because 462778030261 - 2¹ = 462778030259 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 (462778030201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2599876486 + ... + 2599876663.

It is an arithmetic number, because the mean of its divisors is an integer number (116994445875).

Almost surely, 2^462778030261 is an apocalyptic number.

It is an amenable number.

462778030261 is a deficient number, since it is larger than the sum of its proper divisors (5199753239).

462778030261 is an equidigital number, since it uses as much as digits as its factorization.

462778030261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5199753238.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 462778030261 in words is "four hundred sixty-two billion, seven hundred seventy-eight million, thirty thousand, two hundred sixty-one".