78232100002313 has 8 divisors (see below), whose sum is σ = 78257809696968. Its totient is φ = 78206392715904.

The previous prime is 78232100002237. The next prime is 78232100002363. The reversal of 78232100002313 is 31320000123287.

It can be written as a sum of positive squares in 4 ways, for example, as 233740340089 + 77998359662224 = 483467^2 + 8831668^2 .

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 78232100002313 - 2²⁴ = 78232083225097 is a prime.

It is a super-2 number, since 2×78232100002313² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78232100002313.

It is not an unprimeable number, because it can be changed into a prime (78232100002363) 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, 65570531 + ... + 66752967.

It is an arithmetic number, because the mean of its divisors is an integer number (9782226212121).

Almost surely, 2^{78232100002313} is an apocalyptic number.

It is an amenable number.

78232100002313 is a deficient number, since it is larger than the sum of its proper divisors (25709694655).

78232100002313 is a wasteful number, since it uses less digits than its factorization.

78232100002313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204123.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 78232100002313 in words is "seventy-eight trillion, two hundred thirty-two billion, one hundred million, two thousand, three hundred thirteen".