78074544446 has 16 divisors (see below), whose sum is σ = 118927391184. Its totient is φ = 38435291904.

The previous prime is 78074544409. The next prime is 78074544463. The reversal of 78074544446 is 64444547087.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 753971 + ... + 851246.

It is an arithmetic number, because the mean of its divisors is an integer number (7432961949).

Almost surely, 2^78074544446 is an apocalyptic number.

78074544446 is a deficient number, since it is larger than the sum of its proper divisors (40852846738).

78074544446 is a wasteful number, since it uses less digits than its factorization.

78074544446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605595.

The product of its (nonzero) digits is 12042240, while the sum is 53.

The spelling of 78074544446 in words is "seventy-eight billion, seventy-four million, five hundred forty-four thousand, four hundred forty-six".