71484958457 has 4 divisors (see below), whose sum is σ = 77983591056. Its totient is φ = 64986325860.

The previous prime is 71484958439. The next prime is 71484958459. The reversal of 71484958457 is 75485948417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75485948417 = 11 ⋅6862358947.

It is a cyclic number.

It is not a de Polignac number, because 71484958457 - 2⁶ = 71484958393 is a prime.

It is a super-2 number, since 2×71484958457² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71484958457.

It is not an unprimeable number, because it can be changed into a prime (71484958459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3249316283 + ... + 3249316304.

It is an arithmetic number, because the mean of its divisors is an integer number (19495897764).

Almost surely, 2^71484958457 is an apocalyptic number.

It is an amenable number.

71484958457 is a deficient number, since it is larger than the sum of its proper divisors (6498632599).

71484958457 is a wasteful number, since it uses less digits than its factorization.

71484958457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498632598.

The product of its digits is 45158400, while the sum is 62.

The spelling of 71484958457 in words is "seventy-one billion, four hundred eighty-four million, nine hundred fifty-eight thousand, four hundred fifty-seven".