78465740718137 has 8 divisors (see below), whose sum is σ = 78653646899520. Its totient is φ = 78277876213680.

The previous prime is 78465740718067. The next prime is 78465740718139. The reversal of 78465740718137 is 73181704756487.

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 78465740718137 - 2²² = 78465736523833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78465740718139) 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, 6647663 + ... + 14181780.

It is an arithmetic number, because the mean of its divisors is an integer number (9831705862440).

Almost surely, 2^{78465740718137} is an apocalyptic number.

It is an amenable number.

78465740718137 is a deficient number, since it is larger than the sum of its proper divisors (187906181383).

78465740718137 is a wasteful number, since it uses less digits than its factorization.

78465740718137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20838463.

The product of its (nonzero) digits is 221276160, while the sum is 68.

The spelling of 78465740718137 in words is "seventy-eight trillion, four hundred sixty-five billion, seven hundred forty million, seven hundred eighteen thousand, one hundred thirty-seven".