77650488969 has 8 divisors (see below), whose sum is σ = 103680016320. Its totient is φ = 51693977136.

The previous prime is 77650488869. The next prime is 77650489009. The reversal of 77650488969 is 96988405677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77650488969 - 2¹³ = 77650480777 is a prime.

It is a super-2 number, since 2×77650488969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77650488869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18251397 + ... + 18255650.

It is an arithmetic number, because the mean of its divisors is an integer number (12960002040).

Almost surely, 2^77650488969 is an apocalyptic number.

It is an amenable number.

77650488969 is a deficient number, since it is larger than the sum of its proper divisors (26029527351).

77650488969 is a wasteful number, since it uses less digits than its factorization.

77650488969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36507759.

The product of its (nonzero) digits is 182891520, while the sum is 69.

The spelling of 77650488969 in words is "seventy-seven billion, six hundred fifty million, four hundred eighty-eight thousand, nine hundred sixty-nine".