73984973647870 has 64 divisors (see below), whose sum is σ = 139072144427136. Its totient is φ = 28285086269440.

The previous prime is 73984973647861. The next prime is 73984973647883. The reversal of 73984973647870 is 7874637948937.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1702465182 + ... + 1702508638.

It is an arithmetic number, because the mean of its divisors is an integer number (2173002256674).

Almost surely, 2^{73984973647870} is an apocalyptic number.

73984973647870 is a deficient number, since it is larger than the sum of its proper divisors (65087170779266).

73984973647870 is a wasteful number, since it uses less digits than its factorization.

73984973647870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49125.

The product of its (nonzero) digits is 10754021376, while the sum is 82.

The spelling of 73984973647870 in words is "seventy-three trillion, nine hundred eighty-four billion, nine hundred seventy-three million, six hundred forty-seven thousand, eight hundred seventy".