97256081447 has 4 divisors (see below), whose sum is σ = 111149807376. Its totient is φ = 83362355520.

The previous prime is 97256081443. The next prime is 97256081467. The reversal of 97256081447 is 74418065279.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74418065279 = 62483 ⋅1191013.

It is a cyclic number.

It is not a de Polignac number, because 97256081447 - 2² = 97256081443 is a prime.

It is a super-2 number, since 2×97256081447² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97256081443) 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, 6946862954 + ... + 6946862967.

It is an arithmetic number, because the mean of its divisors is an integer number (27787451844).

Almost surely, 2^97256081447 is an apocalyptic number.

97256081447 is a deficient number, since it is larger than the sum of its proper divisors (13893725929).

97256081447 is a wasteful number, since it uses less digits than its factorization.

97256081447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13893725928.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 97256081447 in words is "ninety-seven billion, two hundred fifty-six million, eighty-one thousand, four hundred forty-seven".