77870775793 has 16 divisors (see below), whose sum is σ = 79792257600. Its totient is φ = 75979171840.

The previous prime is 77870775737. The next prime is 77870775839. The reversal of 77870775793 is 39757707877.

It is not a de Polignac number, because 77870775793 - 2¹⁷ = 77870644721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77870773793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2068305 + ... + 2105617.

It is an arithmetic number, because the mean of its divisors is an integer number (4987016100).

Almost surely, 2^77870775793 is an apocalyptic number.

It is an amenable number.

77870775793 is a deficient number, since it is larger than the sum of its proper divisors (1921481807).

77870775793 is a wasteful number, since it uses less digits than its factorization.

77870775793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37712.

The product of its (nonzero) digits is 127060920, while the sum is 67.

The spelling of 77870775793 in words is "seventy-seven billion, eight hundred seventy million, seven hundred seventy-five thousand, seven hundred ninety-three".