73987805402783 has 4 divisors (see below), whose sum is σ = 73989307407048. Its totient is φ = 73986303398520.

The previous prime is 73987805402717. The next prime is 73987805402801. The reversal of 73987805402783 is 38720450878937.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73987805402783 - 2¹⁰ = 73987805401759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73987805404783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750928241 + ... + 751026762.

It is an arithmetic number, because the mean of its divisors is an integer number (18497326851762).

Almost surely, 2^{73987805402783} is an apocalyptic number.

73987805402783 is a deficient number, since it is larger than the sum of its proper divisors (1502004265).

73987805402783 is a wasteful number, since it uses less digits than its factorization.

73987805402783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502004264.

The product of its (nonzero) digits is 568995840, while the sum is 71.

The spelling of 73987805402783 in words is "seventy-three trillion, nine hundred eighty-seven billion, eight hundred five million, four hundred two thousand, seven hundred eighty-three".