78056083188642 has 64 divisors (see below), whose sum is σ = 168519398302080. Its totient is φ = 23960373848064.

The previous prime is 78056083188539. The next prime is 78056083188649. The reversal of 78056083188642 is 24688138065087.

It is not an unprimeable number, because it can be changed into a prime (78056083188649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61006098 + ... + 62272434.

It is an arithmetic number, because the mean of its divisors is an integer number (2633115598470).

Almost surely, 2^{78056083188642} is an apocalyptic number.

78056083188642 is an abundant number, since it is smaller than the sum of its proper divisors (90463315113438).

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

78056083188642 is a wasteful number, since it uses less digits than its factorization.

78056083188642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268227.

The product of its (nonzero) digits is 123863040, while the sum is 66.

The spelling of 78056083188642 in words is "seventy-eight trillion, fifty-six billion, eighty-three million, one hundred eighty-eight thousand, six hundred forty-two".