97780312106 has 8 divisors (see below), whose sum is σ = 150634534980. Its totient is φ = 47568800448.

The previous prime is 97780312103. The next prime is 97780312109. The reversal of 97780312106 is 60121308779.

It is an interprime number because it is at equal distance from previous prime (97780312103) and next prime (97780312109).

It can be written as a sum of positive squares in 2 ways, for example, as 70990806481 + 26789505625 = 266441^2 + 163675^2 .

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

It is not an unprimeable number, because it can be changed into a prime (97780312103) 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, 660677711 + ... + 660677858.

Almost surely, 2^97780312106 is an apocalyptic number.

97780312106 is a deficient number, since it is larger than the sum of its proper divisors (52854222874).

97780312106 is a wasteful number, since it uses less digits than its factorization.

97780312106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321355608.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 97780312106 in words is "ninety-seven billion, seven hundred eighty million, three hundred twelve thousand, one hundred six".