78148223185044 has 24 divisors (see below), whose sum is σ = 188227978425088. Its totient is φ = 25209104253120.

The previous prime is 78148223184991. The next prime is 78148223185057. The reversal of 78148223185044 is 44058132284187.

It is a super-2 number, since 2×78148223185044² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105037934017 + ... + 105037934760.

Almost surely, 2^{78148223185044} is an apocalyptic number.

It is an amenable number.

78148223185044 is an abundant number, since it is smaller than the sum of its proper divisors (110079755240044).

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

78148223185044 is a wasteful number, since it uses less digits than its factorization.

78148223185044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210075868815 (or 210075868813 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 57.

The spelling of 78148223185044 in words is "seventy-eight trillion, one hundred forty-eight billion, two hundred twenty-three million, one hundred eighty-five thousand, forty-four".