78228445875131 has 8 divisors (see below), whose sum is σ = 78760114019328. Its totient is φ = 77696956665000.

The previous prime is 78228445875109. The next prime is 78228445875137. The reversal of 78228445875131 is 13157854482287.

It is a happy number.

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 78228445875131 - 2⁶ = 78228445875067 is a prime.

It is a super-2 number, since 2×78228445875131² (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 (78228445875137) 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, 43856105 + ... + 45604986.

It is an arithmetic number, because the mean of its divisors is an integer number (9845014252416).

Almost surely, 2^{78228445875131} is an apocalyptic number.

78228445875131 is a deficient number, since it is larger than the sum of its proper divisors (531668144197).

78228445875131 is a wasteful number, since it uses less digits than its factorization.

78228445875131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89467033.

The product of its digits is 120422400, while the sum is 65.

The spelling of 78228445875131 in words is "seventy-eight trillion, two hundred twenty-eight billion, four hundred forty-five million, eight hundred seventy-five thousand, one hundred thirty-one".