71743501031 has 4 divisors (see below), whose sum is σ = 75963706992. Its totient is φ = 67523295072.

The previous prime is 71743501021. The next prime is 71743501033. The reversal of 71743501031 is 13010534717.

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 71743501031 - 2¹⁴ = 71743484647 is a prime.

It is a super-2 number, since 2×71743501031² (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 (71743501033) 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, 2110102955 + ... + 2110102988.

It is an arithmetic number, because the mean of its divisors is an integer number (18990926748).

Almost surely, 2^71743501031 is an apocalyptic number.

71743501031 is a deficient number, since it is larger than the sum of its proper divisors (4220205961).

71743501031 is a wasteful number, since it uses less digits than its factorization.

71743501031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220205960.

The product of its (nonzero) digits is 8820, while the sum is 32.

The spelling of 71743501031 in words is "seventy-one billion, seven hundred forty-three million, five hundred one thousand, thirty-one".