78413655631487 has 8 divisors (see below), whose sum is σ = 85546247157072. Its totient is φ = 71281743668800.

The previous prime is 78413655631429. The next prime is 78413655631501.

78413655631487 is nontrivially palindromic in base 10.

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 78413655631487 - 2²⁶ = 78413588522623 is a prime.

It is a super-2 number, since 2×78413655631487² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78413655631427) 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, 169649438 + ... + 170111019.

It is an arithmetic number, because the mean of its divisors is an integer number (10693280894634).

Almost surely, 2^{78413655631487} is an apocalyptic number.

78413655631487 is a deficient number, since it is larger than the sum of its proper divisors (7132591525585).

78413655631487 is a wasteful number, since it uses less digits than its factorization.

78413655631487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339781449.

The product of its digits is 406425600, while the sum is 68.

The spelling of 78413655631487 in words is "seventy-eight trillion, four hundred thirteen billion, six hundred fifty-five million, six hundred thirty-one thousand, four hundred eighty-seven".