18436484707 has 2 divisors, whose sum is σ = 18436484708. Its totient is φ = 18436484706.

The previous prime is 18436484701. The next prime is 18436484761. The reversal of 18436484707 is 70748463481.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18436484707 - 2³ = 18436484699 is a prime.

It is not a weakly prime, because it can be changed into another prime (18436484701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9218242353 + 9218242354.

It is an arithmetic number, because the mean of its divisors is an integer number (9218242354).

Almost surely, 2^18436484707 is an apocalyptic number.

18436484707 is a deficient number, since it is larger than the sum of its proper divisors (1).

18436484707 is an equidigital number, since it uses as much as digits as its factorization.

18436484707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 18436484707 in words is "eighteen billion, four hundred thirty-six million, four hundred eighty-four thousand, seven hundred seven".