77671043801001 has 24 divisors (see below), whose sum is σ = 132967712847424. Its totient is φ = 44383453599600.

The previous prime is 77671043800991. The next prime is 77671043801009. The reversal of 77671043801001 is 10010834017677.

77671043801001 is a `hidden beast` number, since 7 + 7 + 67 + 104 + 380 + 100 + 1 = 666.

It is not a de Polignac number, because 77671043801001 - 2⁵ = 77671043800969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77671043801009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22830992950 + ... + 22830996351.

Almost surely, 2^{77671043801001} is an apocalyptic number.

It is an amenable number.

77671043801001 is a deficient number, since it is larger than the sum of its proper divisors (55296669046423).

77671043801001 is an equidigital number, since it uses as much as digits as its factorization.

77671043801001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45661989323 (or 45661989311 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

Adding to 77671043801001 its reverse (10010834017677), we get a palindrome (87681877818678).

The spelling of 77671043801001 in words is "seventy-seven trillion, six hundred seventy-one billion, forty-three million, eight hundred one thousand, one".