42402642466 has 8 divisors (see below), whose sum is σ = 63605030940. Its totient is φ = 21200965488.

The previous prime is 42402642463. The next prime is 42402642481. The reversal of 42402642466 is 66424620424.

It can be written as a sum of positive squares in 2 ways, for example, as 30242949025 + 12159693441 = 173905^2 + 110271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42402642466² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42402642463) 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, 11400 + ... + 291436.

Almost surely, 2^42402642466 is an apocalyptic number.

42402642466 is a deficient number, since it is larger than the sum of its proper divisors (21202388474).

42402642466 is a wasteful number, since it uses less digits than its factorization.

42402642466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355748.

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 42402642466 in words is "forty-two billion, four hundred two million, six hundred forty-two thousand, four hundred sixty-six".