71440601771 has 16 divisors (see below), whose sum is σ = 91941992448. Its totient is φ = 53872257600.

The previous prime is 71440601767. The next prime is 71440601773. The reversal of 71440601771 is 17710604417.

It is not a de Polignac number, because 71440601771 - 2² = 71440601767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71440601773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14962130 + ... + 14966903.

It is an arithmetic number, because the mean of its divisors is an integer number (5746374528).

Almost surely, 2^71440601771 is an apocalyptic number.

71440601771 is a deficient number, since it is larger than the sum of its proper divisors (20501390677).

71440601771 is a wasteful number, since it uses less digits than its factorization.

71440601771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29929082.

The product of its (nonzero) digits is 32928, while the sum is 38.

The spelling of 71440601771 in words is "seventy-one billion, four hundred forty million, six hundred one thousand, seven hundred seventy-one".