42155310415 has 4 divisors (see below), whose sum is σ = 50586372504. Its totient is φ = 33724248328.

The previous prime is 42155310383. The next prime is 42155310419. The reversal of 42155310415 is 51401355124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42155310415 - 2⁵ = 42155310383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42155310419) 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, 4215531037 + ... + 4215531046.

It is an arithmetic number, because the mean of its divisors is an integer number (12646593126).

Almost surely, 2^42155310415 is an apocalyptic number.

42155310415 is a deficient number, since it is larger than the sum of its proper divisors (8431062089).

42155310415 is an equidigital number, since it uses as much as digits as its factorization.

42155310415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8431062088.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 42155310415 its reverse (51401355124), we get a palindrome (93556665539).

The spelling of 42155310415 in words is "forty-two billion, one hundred fifty-five million, three hundred ten thousand, four hundred fifteen".