78141687437274 has 8 divisors (see below), whose sum is σ = 156283374874560. Its totient is φ = 26047229145756.

The previous prime is 78141687437257. The next prime is 78141687437321. The reversal of 78141687437274 is 47273478614187.

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

78141687437274 is an admirable number.

It is a super-2 number, since 2×78141687437274² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78141687437199 and 78141687437208.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6511807286434 + ... + 6511807286445.

It is an arithmetic number, because the mean of its divisors is an integer number (19535421859320).

Almost surely, 2^{78141687437274} is an apocalyptic number.

78141687437274 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78141687437274 is a wasteful number, since it uses less digits than its factorization.

78141687437274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13023614572884.

The product of its digits is 354041856, while the sum is 69.

The spelling of 78141687437274 in words is "seventy-eight trillion, one hundred forty-one billion, six hundred eighty-seven million, four hundred thirty-seven thousand, two hundred seventy-four".