78151408018773 has 8 divisors (see below), whose sum is σ = 104340628196736. Its totient is φ = 52031563260000.

The previous prime is 78151408018769. The next prime is 78151408018837. The reversal of 78151408018773 is 37781080415187.

It is a happy number.

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

It is not a de Polignac number, because 78151408018773 - 2² = 78151408018769 is a prime.

It is a super-2 number, since 2×78151408018773² (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 (78151408028773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17343852168 + ... + 17343856673.

It is an arithmetic number, because the mean of its divisors is an integer number (13042578524592).

Almost surely, 2^{78151408018773} is an apocalyptic number.

It is an amenable number.

78151408018773 is a deficient number, since it is larger than the sum of its proper divisors (26189220177963).

78151408018773 is a wasteful number, since it uses less digits than its factorization.

78151408018773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34687709595.

The product of its (nonzero) digits is 10536960, while the sum is 60.

The spelling of 78151408018773 in words is "seventy-eight trillion, one hundred fifty-one billion, four hundred eight million, eighteen thousand, seven hundred seventy-three".