71400774774347 has 2 divisors, whose sum is σ = 71400774774348. Its totient is φ = 71400774774346.

The previous prime is 71400774774293. The next prime is 71400774774397. The reversal of 71400774774347 is 74347747700417.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71400774774347 - 2⁴⁶ = 1032030596683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71400774774347.

It is not a weakly prime, because it can be changed into another prime (71400774774397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35700387387173 + 35700387387174.

It is an arithmetic number, because the mean of its divisors is an integer number (35700387387174).

Almost surely, 2^{71400774774347} is an apocalyptic number.

71400774774347 is a deficient number, since it is larger than the sum of its proper divisors (1).

71400774774347 is an equidigital number, since it uses as much as digits as its factorization.

71400774774347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90354432, while the sum is 62.

The spelling of 71400774774347 in words is "seventy-one trillion, four hundred billion, seven hundred seventy-four million, seven hundred seventy-four thousand, three hundred forty-seven".