422102551949 has 16 divisors (see below), whose sum is σ = 455586195120. Its totient is φ = 388764679680.

The previous prime is 422102551921. The next prime is 422102551961. The reversal of 422102551949 is 949155201224.

It can be written as a sum of positive squares in 8 ways, for example, as 15368560900 + 406733991049 = 123970^2 + 637757^2 .

It is not a de Polignac number, because 422102551949 - 2⁸ = 422102551693 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 (422102557949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12136817 + ... + 12171545.

It is an arithmetic number, because the mean of its divisors is an integer number (28474137195).

Almost surely, 2^422102551949 is an apocalyptic number.

It is an amenable number.

422102551949 is a deficient number, since it is larger than the sum of its proper divisors (33483643171).

422102551949 is a wasteful number, since it uses less digits than its factorization.

422102551949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36800.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 422102551949 in words is "four hundred twenty-two billion, one hundred two million, five hundred fifty-one thousand, nine hundred forty-nine".