77071602804044 has 48 divisors (see below), whose sum is σ = 138654853370880. Its totient is φ = 37464338479680.

The previous prime is 77071602804011. The next prime is 77071602804101. The reversal of 77071602804044 is 44040820617077.

It is a junction number, because it is equal to n+sod(n) for n = 77071602803983 and 77071602804001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224940179 + ... + 225282549.

It is an arithmetic number, because the mean of its divisors is an integer number (2888642778560).

Almost surely, 2^{77071602804044} is an apocalyptic number.

It is an amenable number.

77071602804044 is a deficient number, since it is larger than the sum of its proper divisors (61583250566836).

77071602804044 is a wasteful number, since it uses less digits than its factorization.

77071602804044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348510 (or 348508 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 50.

The spelling of 77071602804044 in words is "seventy-seven trillion, seventy-one billion, six hundred two million, eight hundred four thousand, forty-four".