918373964949971 has 8 divisors (see below), whose sum is σ = 918623153062944. Its totient is φ = 918124783312960.

The previous prime is 918373964949967. The next prime is 918373964950003. The reversal of 918373964949971 is 179949469373819.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 918373964949971 - 2² = 918373964949967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918373964999971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289118945 + ... + 292278141.

It is an arithmetic number, because the mean of its divisors is an integer number (114827894132868).

Almost surely, 2^{918373964949971} is an apocalyptic number.

918373964949971 is a deficient number, since it is larger than the sum of its proper divisors (249188112973).

918373964949971 is a wasteful number, since it uses less digits than its factorization.

918373964949971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237981.

The product of its digits is 19999187712, while the sum is 89.

The spelling of 918373964949971 in words is "nine hundred eighteen trillion, three hundred seventy-three billion, nine hundred sixty-four million, nine hundred forty-nine thousand, nine hundred seventy-one".