83703916781 has 8 divisors (see below), whose sum is σ = 84865989504. Its totient is φ = 82542261600.

The previous prime is 83703916771. The next prime is 83703916823. The reversal of 83703916781 is 18761930738.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83703916781 - 2¹⁸ = 83703654637 is a prime.

It is a super-2 number, since 2×83703916781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83703916741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310706 + ... + 513756.

It is an arithmetic number, because the mean of its divisors is an integer number (10608248688).

Almost surely, 2^83703916781 is an apocalyptic number.

It is an amenable number.

83703916781 is a deficient number, since it is larger than the sum of its proper divisors (1162072723).

83703916781 is a wasteful number, since it uses less digits than its factorization.

83703916781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208771.

The product of its (nonzero) digits is 1524096, while the sum is 53.

The spelling of 83703916781 in words is "eighty-three billion, seven hundred three million, nine hundred sixteen thousand, seven hundred eighty-one".