78416407901 has 8 divisors (see below), whose sum is σ = 84451215744. Its totient is φ = 72381996720.

The previous prime is 78416407877. The next prime is 78416407907. The reversal of 78416407901 is 10970461487.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 78416407901 - 2¹⁴ = 78416391517 is a prime.

It is a super-2 number, since 2×78416407901² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78416407907) 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, 407240 + ... + 568046.

It is an arithmetic number, because the mean of its divisors is an integer number (10556401968).

Almost surely, 2^78416407901 is an apocalyptic number.

It is an amenable number.

78416407901 is a deficient number, since it is larger than the sum of its proper divisors (6034807843).

78416407901 is a wasteful number, since it uses less digits than its factorization.

78416407901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198331.

The product of its (nonzero) digits is 338688, while the sum is 47.

The spelling of 78416407901 in words is "seventy-eight billion, four hundred sixteen million, four hundred seven thousand, nine hundred one".