118345623947 has 16 divisors (see below), whose sum is σ = 127992597120. Its totient is φ = 109013678208.

The previous prime is 118345623887. The next prime is 118345623961. The reversal of 118345623947 is 749326543811.

It is a cyclic number.

It is not a de Polignac number, because 118345623947 - 2⁸ = 118345623691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118345623047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32213 + ... + 487574.

It is an arithmetic number, because the mean of its divisors is an integer number (7999537320).

Almost surely, 2^118345623947 is an apocalyptic number.

118345623947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

118345623947 is a deficient number, since it is larger than the sum of its proper divisors (9646973173).

118345623947 is a wasteful number, since it uses less digits than its factorization.

118345623947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520090.

The product of its digits is 4354560, while the sum is 53.

The spelling of 118345623947 in words is "one hundred eighteen billion, three hundred forty-five million, six hundred twenty-three thousand, nine hundred forty-seven".