78212033325015 has 8 divisors (see below), whose sum is σ = 125139253320048. Its totient is φ = 41713084440000.

The previous prime is 78212033324969. The next prime is 78212033325059. The reversal of 78212033325015 is 51052333021287.

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

It is not a de Polignac number, because 78212033325015 - 2¹⁵ = 78212033292247 is a prime.

It is a super-2 number, since 2×78212033325015² (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 7 ways as a sum of consecutive naturals, for example, 2607067777486 + ... + 2607067777515.

It is an arithmetic number, because the mean of its divisors is an integer number (15642406665006).

Almost surely, 2^{78212033325015} is an apocalyptic number.

78212033325015 is a deficient number, since it is larger than the sum of its proper divisors (46927219995033).

78212033325015 is a wasteful number, since it uses less digits than its factorization.

78212033325015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214135555009.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 78212033325015 in words is "seventy-eight trillion, two hundred twelve billion, thirty-three million, three hundred twenty-five thousand, fifteen".