97157677699 has 4 divisors (see below), whose sum is σ = 97809742800. Its totient is φ = 96505612600.

The previous prime is 97157677567. The next prime is 97157677723. The reversal of 97157677699 is 99677675179.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99677675179 = 9293 ⋅10726103.

It is a cyclic number.

It is not a de Polignac number, because 97157677699 - 2¹⁹ = 97157153411 is a prime.

It is a super-2 number, since 2×97157677699² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97157678699) 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, 326032327 + ... + 326032624.

It is an arithmetic number, because the mean of its divisors is an integer number (24452435700).

Almost surely, 2^97157677699 is an apocalyptic number.

97157677699 is a deficient number, since it is larger than the sum of its proper divisors (652065101).

97157677699 is a wasteful number, since it uses less digits than its factorization.

97157677699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652065100.

The product of its digits is 315059220, while the sum is 73.

The spelling of 97157677699 in words is "ninety-seven billion, one hundred fifty-seven million, six hundred seventy-seven thousand, six hundred ninety-nine".