78146140182337 has 8 divisors (see below), whose sum is σ = 78863265938600. Its totient is φ = 77429017857024.

The previous prime is 78146140182311. The next prime is 78146140182347. The reversal of 78146140182337 is 73328104164187.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 63742323886641 + 14403816295696 = 7983879^2 + 3795236^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78146140182337 is a prime.

It is a super-2 number, since 2×78146140182337² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78146140182347) 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, 78091489 + ... + 79085857.

It is an arithmetic number, because the mean of its divisors is an integer number (9857908242325).

Almost surely, 2^{78146140182337} is an apocalyptic number.

It is an amenable number.

78146140182337 is a deficient number, since it is larger than the sum of its proper divisors (717125756263).

78146140182337 is a wasteful number, since it uses less digits than its factorization.

78146140182337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715475.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 78146140182337 in words is "seventy-eight trillion, one hundred forty-six billion, one hundred forty million, one hundred eighty-two thousand, three hundred thirty-seven".