451615842061 has 4 divisors (see below), whose sum is σ = 451620603324. Its totient is φ = 451611080800.

The previous prime is 451615842047. The next prime is 451615842071. The reversal of 451615842061 is 160248516154.

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 388900657161 + 62715184900 = 623619^2 + 250430^2 .

It is a cyclic number.

It is not a de Polignac number, because 451615842061 - 2¹³ = 451615833869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 451615841999 and 451615842017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451615842011) 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, 2235400 + ... + 2429041.

It is an arithmetic number, because the mean of its divisors is an integer number (112905150831).

Almost surely, 2^451615842061 is an apocalyptic number.

It is an amenable number.

451615842061 is a deficient number, since it is larger than the sum of its proper divisors (4761263).

451615842061 is an equidigital number, since it uses as much as digits as its factorization.

451615842061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4761262.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 451615842061 in words is "four hundred fifty-one billion, six hundred fifteen million, eight hundred forty-two thousand, sixty-one".