97098749777 has 4 divisors (see below), whose sum is σ = 97107147120. Its totient is φ = 97090352436.

The previous prime is 97098749729. The next prime is 97098749801. The reversal of 97098749777 is 77794789079.

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.

It is a cyclic number.

It is not a de Polignac number, because 97098749777 - 2³⁴ = 79918880593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97098749477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4181303 + ... + 4204460.

It is an arithmetic number, because the mean of its divisors is an integer number (24276786780).

Almost surely, 2^97098749777 is an apocalyptic number.

It is an amenable number.

97098749777 is a deficient number, since it is larger than the sum of its proper divisors (8397343).

97098749777 is a wasteful number, since it uses less digits than its factorization.

97098749777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8397342.

The product of its (nonzero) digits is 392073696, while the sum is 74.

The spelling of 97098749777 in words is "ninety-seven billion, ninety-eight million, seven hundred forty-nine thousand, seven hundred seventy-seven".