71141783764 has 12 divisors (see below), whose sum is σ = 125333680500. Its totient is φ = 35332160768.

The previous prime is 71141783761. The next prime is 71141783767. The reversal of 71141783764 is 46738714117.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71141783761) and next prime (71141783767).

It can be written as a sum of positive squares in 2 ways, for example, as 43372227600 + 27769556164 = 208260^2 + 166642^2 .

It is a super-2 number, since 2×71141783764² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71141783761) 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, 59682109 + ... + 59683300.

It is an arithmetic number, because the mean of its divisors is an integer number (10444473375).

Almost surely, 2^71141783764 is an apocalyptic number.

It is an amenable number.

71141783764 is a deficient number, since it is larger than the sum of its proper divisors (54191896736).

71141783764 is a wasteful number, since it uses less digits than its factorization.

71141783764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119365562 (or 119365560 counting only the distinct ones).

The product of its digits is 790272, while the sum is 49.

The spelling of 71141783764 in words is "seventy-one billion, one hundred forty-one million, seven hundred eighty-three thousand, seven hundred sixty-four".