71121781703 has 8 divisors (see below), whose sum is σ = 81799757472. Its totient is φ = 60573236256.

The previous prime is 71121781697. The next prime is 71121781739. The reversal of 71121781703 is 30718712117.

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 71121781703 - 2⁶ = 71121781639 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 (71121781903) 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, 32356400 + ... + 32358597.

It is an arithmetic number, because the mean of its divisors is an integer number (10224969684).

Almost surely, 2^71121781703 is an apocalyptic number.

71121781703 is a deficient number, since it is larger than the sum of its proper divisors (10677975769).

71121781703 is a wasteful number, since it uses less digits than its factorization.

71121781703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64715161.

The product of its (nonzero) digits is 16464, while the sum is 38.

The spelling of 71121781703 in words is "seventy-one billion, one hundred twenty-one million, seven hundred eighty-one thousand, seven hundred three".