77830270088457 has 16 divisors (see below), whose sum is σ = 103862750523840. Its totient is φ = 51842336692032.

The previous prime is 77830270088413. The next prime is 77830270088471. The reversal of 77830270088457 is 75488007203877.

It is not a de Polignac number, because 77830270088457 - 2⁶ = 77830270088393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77830270088477) 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, 14532843 + ... + 19153695.

It is an arithmetic number, because the mean of its divisors is an integer number (6491421907740).

Almost surely, 2^{77830270088457} is an apocalyptic number.

It is an amenable number.

77830270088457 is a deficient number, since it is larger than the sum of its proper divisors (26032480435383).

77830270088457 is a wasteful number, since it uses less digits than its factorization.

77830270088457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625672.

The product of its (nonzero) digits is 147517440, while the sum is 66.

The spelling of 77830270088457 in words is "seventy-seven trillion, eight hundred thirty billion, two hundred seventy million, eighty-eight thousand, four hundred fifty-seven".