77446898532 has 36 divisors (see below), whose sum is σ = 202519191420. Its totient is φ = 24925438272.

The previous prime is 77446898513. The next prime is 77446898533. The reversal of 77446898532 is 23589864477.

77446898532 is a `hidden beast` number, since 7 + 7 + 4 + 4 + 6 + 8 + 98 + 532 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 34471120896 + 42975777636 = 185664^2 + 207306^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 77446898532.

It is not an unprimeable number, because it can be changed into a prime (77446898533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37090383 + ... + 37092470.

It is an arithmetic number, because the mean of its divisors is an integer number (5625533095).

Almost surely, 2^77446898532 is an apocalyptic number.

It is an amenable number.

77446898532 is an abundant number, since it is smaller than the sum of its proper divisors (125072292888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77446898532 is a wasteful number, since it uses less digits than its factorization.

77446898532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74182892 (or 74182887 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 77446898532 in words is "seventy-seven billion, four hundred forty-six million, eight hundred ninety-eight thousand, five hundred thirty-two".