42378276431 has 6 divisors (see below), whose sum is σ = 42793721280. Its totient is φ = 41966826348.

The previous prime is 42378276403. The next prime is 42378276461. The reversal of 42378276431 is 13467287324.

It is not a de Polignac number, because 42378276431 - 2¹⁴ = 42378260047 is a prime.

It is a super-2 number, since 2×42378276431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42378276461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1986671 + ... + 2007888.

It is an arithmetic number, because the mean of its divisors is an integer number (7132286880).

Almost surely, 2^42378276431 is an apocalyptic number.

42378276431 is a deficient number, since it is larger than the sum of its proper divisors (415444849).

42378276431 is an equidigital number, since it uses as much as digits as its factorization.

42378276431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3994765 (or 3994662 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 47.

The spelling of 42378276431 in words is "forty-two billion, three hundred seventy-eight million, two hundred seventy-six thousand, four hundred thirty-one".