71271511460420 has 96 divisors (see below), whose sum is σ = 150979052528640. Its totient is φ = 28259923507200.

The previous prime is 71271511460393. The next prime is 71271511460431. The reversal of 71271511460420 is 2406411517217.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6170153645 + ... + 6170165195.

It is an arithmetic number, because the mean of its divisors is an integer number (1572698463840).

Almost surely, 2^{71271511460420} is an apocalyptic number.

It is an amenable number.

71271511460420 is an abundant number, since it is smaller than the sum of its proper divisors (79707541068220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71271511460420 is a wasteful number, since it uses less digits than its factorization.

71271511460420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14733 (or 14731 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

Adding to 71271511460420 its reverse (2406411517217), we get a palindrome (73677922977637).

The spelling of 71271511460420 in words is "seventy-one trillion, two hundred seventy-one billion, five hundred eleven million, four hundred sixty thousand, four hundred twenty".