42079278481 has 4 divisors (see below), whose sum is σ = 43908812352. Its totient is φ = 40249744612.

The previous prime is 42079278469. The next prime is 42079278499. The reversal of 42079278481 is 18487297024.

42079278481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-42079278481 is a prime.

It is a super-2 number, since 2×42079278481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42079278401) 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, 914766901 + ... + 914766946.

It is an arithmetic number, because the mean of its divisors is an integer number (10977203088).

Almost surely, 2^42079278481 is an apocalyptic number.

It is an amenable number.

42079278481 is a deficient number, since it is larger than the sum of its proper divisors (1829533871).

42079278481 is a wasteful number, since it uses less digits than its factorization.

42079278481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829533870.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 42079278481 in words is "forty-two billion, seventy-nine million, two hundred seventy-eight thousand, four hundred eighty-one".