97855430401 has 4 divisors (see below), whose sum is σ = 97856280000. Its totient is φ = 97854580804.

The previous prime is 97855430377. The next prime is 97855430411. The reversal of 97855430401 is 10403455879.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10403455879 = 44129 ⋅235751.

It is a cyclic number.

It is not a de Polignac number, because 97855430401 - 2²³ = 97847041793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97855430411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218701 + ... + 493498.

It is an arithmetic number, because the mean of its divisors is an integer number (24464070000).

Almost surely, 2^97855430401 is an apocalyptic number.

It is an amenable number.

97855430401 is a deficient number, since it is larger than the sum of its proper divisors (849599).

97855430401 is a wasteful number, since it uses less digits than its factorization.

97855430401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849598.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 97855430401 in words is "ninety-seven billion, eight hundred fifty-five million, four hundred thirty thousand, four hundred one".