71078826751 has 2 divisors, whose sum is σ = 71078826752. Its totient is φ = 71078826750.

The previous prime is 71078826691. The next prime is 71078826821. The reversal of 71078826751 is 15762887017.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71078826751 - 2⁹ = 71078826239 is a prime.

It is a super-2 number, since 2×71078826751² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71078826251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35539413375 + 35539413376.

It is an arithmetic number, because the mean of its divisors is an integer number (35539413376).

Almost surely, 2^71078826751 is an apocalyptic number.

71078826751 is a deficient number, since it is larger than the sum of its proper divisors (1).

71078826751 is an equidigital number, since it uses as much as digits as its factorization.

71078826751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1317120, while the sum is 52.

The spelling of 71078826751 in words is "seventy-one billion, seventy-eight million, eight hundred twenty-six thousand, seven hundred fifty-one".