8616121667938 has 8 divisors (see below), whose sum is σ = 13369843967580. Its totient is φ = 4159507012080.

The previous prime is 8616121667837. The next prime is 8616121667963. The reversal of 8616121667938 is 8397661216168.

It can be written as a sum of positive squares in 2 ways, for example, as 7452556023969 + 1163565643969 = 2729937^2 + 1078687^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 8616121667938.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74276910873 + ... + 74276910988.

Almost surely, 2^{8616121667938} is an apocalyptic number.

8616121667938 is a deficient number, since it is larger than the sum of its proper divisors (4753722299642).

8616121667938 is a wasteful number, since it uses less digits than its factorization.

8616121667938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148553821892.

The product of its digits is 31352832, while the sum is 64.

The spelling of 8616121667938 in words is "eight trillion, six hundred sixteen billion, one hundred twenty-one million, six hundred sixty-seven thousand, nine hundred thirty-eight".