77853014893 has 8 divisors (see below), whose sum is σ = 81650308608. Its totient is φ = 74090086224.

The previous prime is 77853014867. The next prime is 77853014917. The reversal of 77853014893 is 39841035877.

It is a happy number.

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 77853014893 - 2¹³ = 77853006701 is a prime.

It is a super-2 number, since 2×77853014893² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77853054893) 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, 8586621 + ... + 8595682.

It is an arithmetic number, because the mean of its divisors is an integer number (10206288576).

Almost surely, 2^77853014893 is an apocalyptic number.

It is an amenable number.

77853014893 is a deficient number, since it is larger than the sum of its proper divisors (3797293715).

77853014893 is a wasteful number, since it uses less digits than its factorization.

77853014893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17182523.

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 77853014893 in words is "seventy-seven billion, eight hundred fifty-three million, fourteen thousand, eight hundred ninety-three".