78213723464107 has 48 divisors (see below), whose sum is σ = 99533362088160. Its totient is φ = 60774615283200.

The previous prime is 78213723464089. The next prime is 78213723464117. The reversal of 78213723464107 is 70146432731287.

It is not a de Polignac number, because 78213723464107 - 2³⁵ = 78179363725739 is a prime.

It is a super-2 number, since 2×78213723464107² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78213723464117) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 926913303 + ... + 926997679.

It is an arithmetic number, because the mean of its divisors is an integer number (2073611710170).

Almost surely, 2^{78213723464107} is an apocalyptic number.

78213723464107 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

78213723464107 is a deficient number, since it is larger than the sum of its proper divisors (21319638624053).

78213723464107 is a wasteful number, since it uses less digits than its factorization.

78213723464107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89212 (or 89205 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 78213723464107 in words is "seventy-eight trillion, two hundred thirteen billion, seven hundred twenty-three million, four hundred sixty-four thousand, one hundred seven".