77498766045 has 48 divisors (see below), whose sum is σ = 138763901952. Its totient is φ = 39970679040.

The previous prime is 77498766043. The next prime is 77498766071. The reversal of 77498766045 is 54066789477.

77498766045 is a `hidden beast` number, since 77 + 498 + 76 + 6 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 77498766045 - 2¹ = 77498766043 is a prime.

It is a super-4 number, since 4×77498766045⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77498766043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1999369 + ... + 2037761.

It is an arithmetic number, because the mean of its divisors is an integer number (2890914624).

Almost surely, 2^77498766045 is an apocalyptic number.

It is an amenable number.

77498766045 is a deficient number, since it is larger than the sum of its proper divisors (61265135907).

77498766045 is a wasteful number, since it uses less digits than its factorization.

77498766045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39882 (or 39879 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 63.

The spelling of 77498766045 in words is "seventy-seven billion, four hundred ninety-eight million, seven hundred sixty-six thousand, forty-five".