18070542415 has 4 divisors (see below), whose sum is σ = 21684650904. Its totient is φ = 14456433928.

The previous prime is 18070542407. The next prime is 18070542419. The reversal of 18070542415 is 51424507081.

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 18070542415 - 2³ = 18070542407 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 (18070542419) 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, 1807054237 + ... + 1807054246.

It is an arithmetic number, because the mean of its divisors is an integer number (5421162726).

Almost surely, 2^18070542415 is an apocalyptic number.

18070542415 is a deficient number, since it is larger than the sum of its proper divisors (3614108489).

18070542415 is an equidigital number, since it uses as much as digits as its factorization.

18070542415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614108488.

The product of its (nonzero) digits is 44800, while the sum is 37.

The spelling of 18070542415 in words is "eighteen billion, seventy million, five hundred forty-two thousand, four hundred fifteen".