77850406533653 has 8 divisors (see below), whose sum is σ = 83891861399808. Its totient is φ = 71816517675504.

The previous prime is 77850406533649. The next prime is 77850406533661. The reversal of 77850406533653 is 35633560405877.

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 77850406533653 - 2² = 77850406533649 is a prime.

It is a super-2 number, since 2×77850406533653² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77850406533623) 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, 1891480625 + ... + 1891521782.

It is an arithmetic number, because the mean of its divisors is an integer number (10486482674976).

Almost surely, 2^{77850406533653} is an apocalyptic number.

It is an amenable number.

77850406533653 is a deficient number, since it is larger than the sum of its proper divisors (6041454866155).

77850406533653 is a wasteful number, since it uses less digits than its factorization.

77850406533653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783004003.

The product of its (nonzero) digits is 190512000, while the sum is 62.

The spelling of 77850406533653 in words is "seventy-seven trillion, eight hundred fifty billion, four hundred six million, five hundred thirty-three thousand, six hundred fifty-three".