78463222136355 has 64 divisors (see below), whose sum is σ = 144347113230336. Its totient is φ = 35651653632000.

The previous prime is 78463222136347. The next prime is 78463222136417. The reversal of 78463222136355 is 55363122236487.

It is a happy number.

It is not a de Polignac number, because 78463222136355 - 2³ = 78463222136347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78463222136295 and 78463222136304.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8704675 + ... + 15254435.

It is an arithmetic number, because the mean of its divisors is an integer number (2255423644224).

Almost surely, 2^{78463222136355} is an apocalyptic number.

78463222136355 is a deficient number, since it is larger than the sum of its proper divisors (65883891093981).

78463222136355 is a wasteful number, since it uses less digits than its factorization.

78463222136355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6550468.

The product of its digits is 43545600, while the sum is 57.

The spelling of 78463222136355 in words is "seventy-eight trillion, four hundred sixty-three billion, two hundred twenty-two million, one hundred thirty-six thousand, three hundred fifty-five".