77895289485 has 192 divisors, whose sum is σ = 153269625600. Its totient is φ = 36332642304.

The previous prime is 77895289477. The next prime is 77895289547. The reversal of 77895289485 is 58498259877.

77895289485 is a `hidden beast` number, since 7 + 7 + 8 + 9 + 528 + 94 + 8 + 5 = 666.

It is not a de Polignac number, because 77895289485 - 2³ = 77895289477 is a prime.

It is a super-2 number, since 2×77895289485² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 343150942 + ... + 343151168.

It is an arithmetic number, because the mean of its divisors is an integer number (798279300).

Almost surely, 2^77895289485 is an apocalyptic number.

It is an amenable number.

77895289485 is a deficient number, since it is larger than the sum of its proper divisors (75374336115).

77895289485 is a wasteful number, since it uses less digits than its factorization.

77895289485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 569 counting only the distinct ones).

The product of its digits is 406425600, while the sum is 72.

The spelling of 77895289485 in words is "seventy-seven billion, eight hundred ninety-five million, two hundred eighty-nine thousand, four hundred eighty-five".