97658329949 has 4 divisors (see below), whose sum is σ = 97659895200. Its totient is φ = 97656764700.

The previous prime is 97658329943. The next prime is 97658330051. The reversal of 97658329949 is 94992385679.

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 97658329949 - 2²⁸ = 97389894493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97658329943) 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, 684977 + ... + 815174.

It is an arithmetic number, because the mean of its divisors is an integer number (24414973800).

Almost surely, 2^97658329949 is an apocalyptic number.

It is an amenable number.

97658329949 is a deficient number, since it is larger than the sum of its proper divisors (1565251).

97658329949 is a wasteful number, since it uses less digits than its factorization.

97658329949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565250.

The product of its digits is 264539520, while the sum is 71.

The spelling of 97658329949 in words is "ninety-seven billion, six hundred fifty-eight million, three hundred twenty-nine thousand, nine hundred forty-nine".