78146137125343 has 24 divisors (see below), whose sum is σ = 92097525493872. Its totient is φ = 66109124237184.

The previous prime is 78146137125337. The next prime is 78146137125347. The reversal of 78146137125343 is 34352173164187.

It is not a de Polignac number, because 78146137125343 - 2²⁵ = 78146103570911 is a prime.

It is a super-2 number, since 2×78146137125343² (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 (78146137125347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32483205 + ... + 34805902.

It is an arithmetic number, because the mean of its divisors is an integer number (3837396895578).

Almost surely, 2^{78146137125343} is an apocalyptic number.

78146137125343 is a deficient number, since it is larger than the sum of its proper divisors (13951388368529).

78146137125343 is a wasteful number, since it uses less digits than its factorization.

78146137125343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67289431 (or 67289424 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 55.

The spelling of 78146137125343 in words is "seventy-eight trillion, one hundred forty-six billion, one hundred thirty-seven million, one hundred twenty-five thousand, three hundred forty-three".