78148635457366 has 8 divisors (see below), whose sum is σ = 117222990710400. Its totient is φ = 39074305220568.

The previous prime is 78148635457331. The next prime is 78148635457429. The reversal of 78148635457366 is 66375453684187.

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

It is a super-2 number, since 2×78148635457366² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 8887860 + ... + 15339208.

It is an arithmetic number, because the mean of its divisors is an integer number (14652873838800).

Almost surely, 2^{78148635457366} is an apocalyptic number.

78148635457366 is a deficient number, since it is larger than the sum of its proper divisors (39074355253034).

78148635457366 is a wasteful number, since it uses less digits than its factorization.

78148635457366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12508118.

The product of its digits is 2438553600, while the sum is 73.

The spelling of 78148635457366 in words is "seventy-eight trillion, one hundred forty-eight billion, six hundred thirty-five million, four hundred fifty-seven thousand, three hundred sixty-six".