77554452196 has 27 divisors (see below), whose sum is σ = 146977114473. Its totient is φ = 35791020720.

The previous prime is 77554452181. The next prime is 77554452197. The reversal of 77554452196 is 69125445577.

The square root of 77554452196 is 278486.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11472552100 + 66081900096 = 107110^2 + 257064^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77554452197) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7235281 + ... + 7245991.

Almost surely, 2^77554452196 is an apocalyptic number.

77554452196 is the 278486-th square number.

It is an amenable number.

77554452196 is a deficient number, since it is larger than the sum of its proper divisors (69422662277).

77554452196 is an equidigital number, since it uses as much as digits as its factorization.

77554452196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21452 (or 10726 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 55.

The spelling of 77554452196 in words is "seventy-seven billion, five hundred fifty-four million, four hundred fifty-two thousand, one hundred ninety-six".