77473706142 has 32 divisors (see below), whose sum is σ = 177100664832. Its totient is φ = 22133106144.

The previous prime is 77473706131. The next prime is 77473706159. The reversal of 77473706142 is 24160737477.

It is a junction number, because it is equal to n+sod(n) for n = 77473706091 and 77473706100.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 352003 + ... + 528065.

It is an arithmetic number, because the mean of its divisors is an integer number (5534395776).

Almost surely, 2^77473706142 is an apocalyptic number.

77473706142 is an abundant number, since it is smaller than the sum of its proper divisors (99626958690).

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

77473706142 is a wasteful number, since it uses less digits than its factorization.

77473706142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186552.

The product of its (nonzero) digits is 1382976, while the sum is 48.

The spelling of 77473706142 in words is "seventy-seven billion, four hundred seventy-three million, seven hundred six thousand, one hundred forty-two".