75471666522397 has 16 divisors (see below), whose sum is σ = 82271767752000. Its totient is φ = 68959664008704.

The previous prime is 75471666522367. The next prime is 75471666522407. The reversal of 75471666522397 is 79322566617457.

It is not a de Polignac number, because 75471666522397 - 2⁷ = 75471666522269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75471666522367) 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, 73208343 + ... + 74232100.

It is an arithmetic number, because the mean of its divisors is an integer number (5141985484500).

Almost surely, 2^{75471666522397} is an apocalyptic number.

It is an amenable number.

75471666522397 is a deficient number, since it is larger than the sum of its proper divisors (6800101229603).

75471666522397 is a wasteful number, since it uses less digits than its factorization.

75471666522397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147441420.

The product of its digits is 800150400, while the sum is 70.

The spelling of 75471666522397 in words is "seventy-five trillion, four hundred seventy-one billion, six hundred sixty-six million, five hundred twenty-two thousand, three hundred ninety-seven".