97200019851 has 16 divisors (see below), whose sum is σ = 141422079360. Its totient is φ = 58892339520.

The previous prime is 97200019843. The next prime is 97200019877. The reversal of 97200019851 is 15891000279.

It is not a de Polignac number, because 97200019851 - 2³ = 97200019843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (97200019801) 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 15 ways as a sum of consecutive naturals, for example, 300865 + ... + 533778.

It is an arithmetic number, because the mean of its divisors is an integer number (8838879960).

Almost surely, 2^97200019851 is an apocalyptic number.

97200019851 is a deficient number, since it is larger than the sum of its proper divisors (44222059509).

97200019851 is a wasteful number, since it uses less digits than its factorization.

97200019851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838186.

The product of its (nonzero) digits is 45360, while the sum is 42.

The spelling of 97200019851 in words is "ninety-seven billion, two hundred million, nineteen thousand, eight hundred fifty-one".