77901885413 has 8 divisors (see below), whose sum is σ = 84990803040. Its totient is φ = 70814122480.

The previous prime is 77901885409. The next prime is 77901885463. The reversal of 77901885413 is 31458810977.

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

It is a cyclic number.

It is not a de Polignac number, because 77901885413 - 2² = 77901885409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77901885463) 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, 144470 + ... + 420327.

It is an arithmetic number, because the mean of its divisors is an integer number (10623850380).

Almost surely, 2^77901885413 is an apocalyptic number.

It is an amenable number.

77901885413 is a deficient number, since it is larger than the sum of its proper divisors (7088917627).

77901885413 is a wasteful number, since it uses less digits than its factorization.

77901885413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577347.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 77901885413 in words is "seventy-seven billion, nine hundred one million, eight hundred eighty-five thousand, four hundred thirteen".