78825809484237 has 8 divisors (see below), whose sum is σ = 105101124023104. Its totient is φ = 52550517300768.

The previous prime is 78825809484199. The next prime is 78825809484287. The reversal of 78825809484237 is 73248490852887.

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

It is not a de Polignac number, because 78825809484237 - 2¹⁸ = 78825809222093 is a prime.

It is a super-5 number, since 5×78825809484237⁵ (a number of 71 digits) contains 55555 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 (78825809484287) 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, 6177288 + ... + 13993230.

It is an arithmetic number, because the mean of its divisors is an integer number (13137640502888).

Almost surely, 2^{78825809484237} is an apocalyptic number.

It is an amenable number.

78825809484237 is a deficient number, since it is larger than the sum of its proper divisors (26275314538867).

78825809484237 is a wasteful number, since it uses less digits than its factorization.

78825809484237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11177699.

The product of its (nonzero) digits is 1734082560, while the sum is 75.

The spelling of 78825809484237 in words is "seventy-eight trillion, eight hundred twenty-five billion, eight hundred nine million, four hundred eighty-four thousand, two hundred thirty-seven".