118640428667 has 2 divisors, whose sum is σ = 118640428668. Its totient is φ = 118640428666.

The previous prime is 118640428619. The next prime is 118640428679. The reversal of 118640428667 is 766824046811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118640428667 - 2⁸ = 118640428411 is a prime.

It is not a weakly prime, because it can be changed into another prime (118640428367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59320214333 + 59320214334.

It is an arithmetic number, because the mean of its divisors is an integer number (59320214334).

Almost surely, 2^118640428667 is an apocalyptic number.

118640428667 is a deficient number, since it is larger than the sum of its proper divisors (1).

118640428667 is an equidigital number, since it uses as much as digits as its factorization.

118640428667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 118640428667 in words is "one hundred eighteen billion, six hundred forty million, four hundred twenty-eight thousand, six hundred sixty-seven".