78213700723347 has 12 divisors (see below), whose sum is σ = 129114680559280. Its totient is φ = 44693543270448.

The previous prime is 78213700723313. The next prime is 78213700723427. The reversal of 78213700723347 is 74332700731287.

It is not a de Polignac number, because 78213700723347 - 2¹⁶ = 78213700657811 is a prime.

It is a super-2 number, since 2×78213700723347² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78213700723293 and 78213700723302.

It is not an unprimeable number, because it can be changed into a prime (78213700723307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620743656472 + ... + 620743656597.

Almost surely, 2^{78213700723347} is an apocalyptic number.

78213700723347 is a deficient number, since it is larger than the sum of its proper divisors (50900979835933).

78213700723347 is a wasteful number, since it uses less digits than its factorization.

78213700723347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241487313082 (or 1241487313079 counting only the distinct ones).

The product of its (nonzero) digits is 8297856, while the sum is 54.

The spelling of 78213700723347 in words is "seventy-eight trillion, two hundred thirteen billion, seven hundred million, seven hundred twenty-three thousand, three hundred forty-seven".