71464647488025 has 24 divisors (see below), whose sum is σ = 128896236925344. Its totient is φ = 34649526054400.

The previous prime is 71464647488023. The next prime is 71464647488027. The reversal of 71464647488025 is 52088474646417.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (71464647488023) and next prime (71464647488027).

It is not a de Polignac number, because 71464647488025 - 2¹ = 71464647488023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71464647488023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43311906744 + ... + 43311908393.

It is an arithmetic number, because the mean of its divisors is an integer number (5370676538556).

Almost surely, 2^{71464647488025} is an apocalyptic number.

71464647488025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71464647488025 is a deficient number, since it is larger than the sum of its proper divisors (57431589437319).

71464647488025 is a wasteful number, since it uses less digits than its factorization.

71464647488025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86623815161 (or 86623815156 counting only the distinct ones).

The product of its (nonzero) digits is 289013760, while the sum is 66.

The spelling of 71464647488025 in words is "seventy-one trillion, four hundred sixty-four billion, six hundred forty-seven million, four hundred eighty-eight thousand, twenty-five".