42878788741601 has 4 divisors (see below), whose sum is σ = 43118335047600. Its totient is φ = 42639242435604.

The previous prime is 42878788741583. The next prime is 42878788741603. The reversal of 42878788741601 is 10614788787824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42878788741601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42878788741603) 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, 119773152731 + ... + 119773153088.

It is an arithmetic number, because the mean of its divisors is an integer number (10779583761900).

Almost surely, 2^{42878788741601} is an apocalyptic number.

It is an amenable number.

42878788741601 is a deficient number, since it is larger than the sum of its proper divisors (239546305999).

42878788741601 is a wasteful number, since it uses less digits than its factorization.

42878788741601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239546305998.

The product of its (nonzero) digits is 269746176, while the sum is 71.

The spelling of 42878788741601 in words is "forty-two trillion, eight hundred seventy-eight billion, seven hundred eighty-eight million, seven hundred forty-one thousand, six hundred one".