71740467551 has 4 divisors (see below), whose sum is σ = 75960495072. Its totient is φ = 67520440032.

The previous prime is 71740467523. The next prime is 71740467593. The reversal of 71740467551 is 15576404717.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71740467551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71740467496 and 71740467505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71740463551) 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, 2110013735 + ... + 2110013768.

It is an arithmetic number, because the mean of its divisors is an integer number (18990123768).

Almost surely, 2^71740467551 is an apocalyptic number.

71740467551 is a deficient number, since it is larger than the sum of its proper divisors (4220027521).

71740467551 is a wasteful number, since it uses less digits than its factorization.

71740467551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220027520.

The product of its (nonzero) digits is 823200, while the sum is 47.

The spelling of 71740467551 in words is "seventy-one billion, seven hundred forty million, four hundred sixty-seven thousand, five hundred fifty-one".