609648451501 has 2 divisors, whose sum is σ = 609648451502. Its totient is φ = 609648451500.

The previous prime is 609648451427. The next prime is 609648451547. The reversal of 609648451501 is 105154846906.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 476722583401 + 132925868100 = 690451^2 + 364590^2 .

It is a cyclic number.

It is not a de Polignac number, because 609648451501 - 2¹³ = 609648443309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (609648454501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304824225750 + 304824225751.

It is an arithmetic number, because the mean of its divisors is an integer number (304824225751).

Almost surely, 2^609648451501 is an apocalyptic number.

It is an amenable number.

609648451501 is a deficient number, since it is larger than the sum of its proper divisors (1).

609648451501 is an equidigital number, since it uses as much as digits as its factorization.

609648451501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 609648451501 in words is "six hundred nine billion, six hundred forty-eight million, four hundred fifty-one thousand, five hundred one".