71361143439901 has 32 divisors (see below), whose sum is σ = 82603105498368. Its totient is φ = 60384381880320.

The previous prime is 71361143439853. The next prime is 71361143439919. The reversal of 71361143439901 is 10993434116317.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 71361143439901 - 2²³ = 71361135051293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71361143439101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 527856951 + ... + 527992123.

It is an arithmetic number, because the mean of its divisors is an integer number (2581347046824).

Almost surely, 2^{71361143439901} is an apocalyptic number.

It is an amenable number.

71361143439901 is a deficient number, since it is larger than the sum of its proper divisors (11241962058467).

71361143439901 is a wasteful number, since it uses less digits than its factorization.

71361143439901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137221.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The spelling of 71361143439901 in words is "seventy-one trillion, three hundred sixty-one billion, one hundred forty-three million, four hundred thirty-nine thousand, nine hundred one".