42878305835051 has 2 divisors, whose sum is σ = 42878305835052. Its totient is φ = 42878305835050.

The previous prime is 42878305835033. The next prime is 42878305835087. The reversal of 42878305835051 is 15053850387824.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42878305835051 is a prime.

It is a super-2 number, since 2×42878305835051² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42878305835251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21439152917525 + 21439152917526.

It is an arithmetic number, because the mean of its divisors is an integer number (21439152917526).

Almost surely, 2^{42878305835051} is an apocalyptic number.

42878305835051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42878305835051 is an equidigital number, since it uses as much as digits as its factorization.

42878305835051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256000, while the sum is 59.

The spelling of 42878305835051 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred five million, eight hundred thirty-five thousand, fifty-one".