78214153804125 has 16 divisors (see below), whose sum is σ = 130148351930688. Its totient is φ = 41714215362000.

The previous prime is 78214153804123. The next prime is 78214153804133. The reversal of 78214153804125 is 52140835141287.

It is not a de Polignac number, because 78214153804125 - 2¹ = 78214153804123 is a prime.

It is a super-2 number, since 2×78214153804125² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78214153804123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104285538031 + ... + 104285538780.

It is an arithmetic number, because the mean of its divisors is an integer number (8134271995668).

Almost surely, 2^{78214153804125} is an apocalyptic number.

78214153804125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78214153804125 is a deficient number, since it is larger than the sum of its proper divisors (51934198126563).

78214153804125 is a wasteful number, since it uses less digits than its factorization.

78214153804125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208571076829 (or 208571076819 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 78214153804125 in words is "seventy-eight trillion, two hundred fourteen billion, one hundred fifty-three million, eight hundred four thousand, one hundred twenty-five".