97780177232 has 10 divisors (see below), whose sum is σ = 189449093418. Its totient is φ = 48890088608.

The previous prime is 97780177189. The next prime is 97780177237. The reversal of 97780177232 is 23277108779.

It can be written as a sum of positive squares in only one way, i.e., 96930104896 + 850072336 = 311336^2 + 29156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97780177237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055630523 + ... + 3055630554.

Almost surely, 2^97780177232 is an apocalyptic number.

It is an amenable number.

97780177232 is a deficient number, since it is larger than the sum of its proper divisors (91668916186).

97780177232 is a wasteful number, since it uses less digits than its factorization.

97780177232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111261085 (or 6111261079 counting only the distinct ones).

The product of its (nonzero) digits is 2074464, while the sum is 53.

The spelling of 97780177232 in words is "ninety-seven billion, seven hundred eighty million, one hundred seventy-seven thousand, two hundred thirty-two".