77525652134412 has 18 divisors (see below), whose sum is σ = 195967620673188. Its totient is φ = 25841884044792.

The previous prime is 77525652134393. The next prime is 77525652134443. The reversal of 77525652134412 is 21443125652577.

77525652134412 is a `hidden beast` number, since 7 + 7 + 5 + 2 + 5 + 6 + 5 + 213 + 4 + 412 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1076745168498 + ... + 1076745168569.

Almost surely, 2^{77525652134412} is an apocalyptic number.

It is an amenable number.

77525652134412 is an abundant number, since it is smaller than the sum of its proper divisors (118441968538776).

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

77525652134412 is a wasteful number, since it uses less digits than its factorization.

77525652134412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153490337077 (or 2153490337072 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 54.

Adding to 77525652134412 its reverse (21443125652577), we get a palindrome (98968777786989).

The spelling of 77525652134412 in words is "seventy-seven trillion, five hundred twenty-five billion, six hundred fifty-two million, one hundred thirty-four thousand, four hundred twelve".