78903621934 has 32 divisors (see below), whose sum is σ = 124129744704. Its totient is φ = 37544939520.

The previous prime is 78903621917. The next prime is 78903621947. The reversal of 78903621934 is 43912630987.

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 15 ways as a sum of consecutive naturals, for example, 8634832 + ... + 8643964.

It is an arithmetic number, because the mean of its divisors is an integer number (3879054522).

Almost surely, 2^78903621934 is an apocalyptic number.

78903621934 is a deficient number, since it is larger than the sum of its proper divisors (45226122770).

78903621934 is a wasteful number, since it uses less digits than its factorization.

78903621934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10092.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 78903621934 in words is "seventy-eight billion, nine hundred three million, six hundred twenty-one thousand, nine hundred thirty-four".