42252663602 has 6 divisors (see below), whose sum is σ = 63379431453. Its totient is φ = 21126186452.

The previous prime is 42252663589. The next prime is 42252663641. The reversal of 42252663602 is 20636625224.

It can be written as a sum of positive squares in 2 ways, for example, as 40417483681 + 1835179921 = 201041^2 + 42839^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=145349.

It is a super-2 number, since 2×42252663602² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 218024 + ... + 363372.

Almost surely, 2^42252663602 is an apocalyptic number.

42252663602 is a deficient number, since it is larger than the sum of its proper divisors (21126767851).

42252663602 is an frugal number, since it uses more digits than its factorization.

42252663602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290700 (or 145351 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 42252663602 in words is "forty-two billion, two hundred fifty-two million, six hundred sixty-three thousand, six hundred two".