73478121696 has 108 divisors (see below), whose sum is σ = 243068297472. Its totient is φ = 20993745024.

The previous prime is 73478121637. The next prime is 73478121713. The reversal of 73478121696 is 69612187437.

73478121696 is a `hidden beast` number, since 7 + 3 + 478 + 1 + 2 + 169 + 6 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2589280 + ... + 2617503.

It is an arithmetic number, because the mean of its divisors is an integer number (2250632384).

Almost surely, 2^73478121696 is an apocalyptic number.

It is an amenable number.

73478121696 is an abundant number, since it is smaller than the sum of its proper divisors (169590175776).

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

73478121696 is a wasteful number, since it uses less digits than its factorization.

73478121696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5206813 (or 5206795 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The spelling of 73478121696 in words is "seventy-three billion, four hundred seventy-eight million, one hundred twenty-one thousand, six hundred ninety-six".