78887400622727 has 8 divisors (see below), whose sum is σ = 79974957103440. Its totient is φ = 77800030822080.

The previous prime is 78887400622691. The next prime is 78887400622729. The reversal of 78887400622727 is 72722600478887.

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 78887400622727 - 2²⁴ = 78887383845511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78887400622729) 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, 45818924 + ... + 47509457.

It is an arithmetic number, because the mean of its divisors is an integer number (9996869637930).

Almost surely, 2^{78887400622727} is an apocalyptic number.

78887400622727 is a deficient number, since it is larger than the sum of its proper divisors (1087556480713).

78887400622727 is a wasteful number, since it uses less digits than its factorization.

78887400622727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93340033.

The product of its (nonzero) digits is 236027904, while the sum is 68.

The spelling of 78887400622727 in words is "seventy-eight trillion, eight hundred eighty-seven billion, four hundred million, six hundred twenty-two thousand, seven hundred twenty-seven".