42642896397 has 8 divisors (see below), whose sum is σ = 57378821280. Its totient is φ = 28167784560.

The previous prime is 42642896377. The next prime is 42642896431. The reversal of 42642896397 is 79369824624.

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

It is not a de Polignac number, because 42642896397 - 2³⁰ = 41569154573 is a prime.

It is a super-2 number, since 2×42642896397² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42642896397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42642896357) 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, 65202879 + ... + 65203532.

It is an arithmetic number, because the mean of its divisors is an integer number (7172352660).

Almost surely, 2^42642896397 is an apocalyptic number.

It is an amenable number.

42642896397 is a deficient number, since it is larger than the sum of its proper divisors (14735924883).

42642896397 is a wasteful number, since it uses less digits than its factorization.

42642896397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130406523.

The product of its digits is 31352832, while the sum is 60.

The spelling of 42642896397 in words is "forty-two billion, six hundred forty-two million, eight hundred ninety-six thousand, three hundred ninety-seven".