42638699395 has 8 divisors (see below), whose sum is σ = 51168211056. Its totient is φ = 34109778336.

The previous prime is 42638699393. The next prime is 42638699401. The reversal of 42638699395 is 59399683624.

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

It is a cyclic number.

It is not a de Polignac number, because 42638699395 - 2¹ = 42638699393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42638699393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30789 + ... + 293641.

It is an arithmetic number, because the mean of its divisors is an integer number (6396026382).

Almost surely, 2^42638699395 is an apocalyptic number.

42638699395 is a deficient number, since it is larger than the sum of its proper divisors (8529511661).

42638699395 is a wasteful number, since it uses less digits than its factorization.

42638699395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295301.

The product of its digits is 75582720, while the sum is 64.

The spelling of 42638699395 in words is "forty-two billion, six hundred thirty-eight million, six hundred ninety-nine thousand, three hundred ninety-five".