42847387078201 has 4 divisors (see below), whose sum is σ = 42848705207952. Its totient is φ = 42846068948452.

The previous prime is 42847387078189. The next prime is 42847387078253. The reversal of 42847387078201 is 10287078374824.

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 not a de Polignac number, because 42847387078201 - 2³⁷ = 42709948124729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42847387078201.

It is not an unprimeable number, because it can be changed into a prime (42847387075201) 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, 659016115 + ... + 659081128.

It is an arithmetic number, because the mean of its divisors is an integer number (10712176301988).

Almost surely, 2^{42847387078201} is an apocalyptic number.

It is an amenable number.

42847387078201 is a deficient number, since it is larger than the sum of its proper divisors (1318129751).

42847387078201 is a wasteful number, since it uses less digits than its factorization.

42847387078201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318129750.

The product of its (nonzero) digits is 33718272, while the sum is 61.

The spelling of 42847387078201 in words is "forty-two trillion, eight hundred forty-seven billion, three hundred eighty-seven million, seventy-eight thousand, two hundred one".