77417599990 has 16 divisors (see below), whose sum is σ = 147548837952. Its totient is φ = 29145449344.

The previous prime is 77417599969. The next prime is 77417599997. The reversal of 77417599990 is 9999571477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77417599997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227698654 + ... + 227698993.

It is an arithmetic number, because the mean of its divisors is an integer number (9221802372).

Almost surely, 2^77417599990 is an apocalyptic number.

77417599990 is a deficient number, since it is larger than the sum of its proper divisors (70131237962).

77417599990 is a wasteful number, since it uses less digits than its factorization.

77417599990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455397671.

The product of its (nonzero) digits is 45008460, while the sum is 67.

The spelling of 77417599990 in words is "seventy-seven billion, four hundred seventeen million, five hundred ninety-nine thousand, nine hundred ninety".