97711478990 has 8 divisors (see below), whose sum is σ = 175880662200. Its totient is φ = 39084591592.

The previous prime is 97711478989. The next prime is 97711478993. The reversal of 97711478990 is 9987411779.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×97711478990² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97711478993) 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, 4885573940 + ... + 4885573959.

It is an arithmetic number, because the mean of its divisors is an integer number (21985082775).

Almost surely, 2^97711478990 is an apocalyptic number.

97711478990 is a deficient number, since it is larger than the sum of its proper divisors (78169183210).

97711478990 is a wasteful number, since it uses less digits than its factorization.

97711478990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9771147906.

The product of its (nonzero) digits is 8001504, while the sum is 62.

The spelling of 97711478990 in words is "ninety-seven billion, seven hundred eleven million, four hundred seventy-eight thousand, nine hundred ninety".