77483299238478 has 96 divisors (see below), whose sum is σ = 192170045583360. Its totient is φ = 22102715073600.

The previous prime is 77483299238437. The next prime is 77483299238491. The reversal of 77483299238478 is 87483299238477.

77483299238478 is a `hidden beast` number, since 7 + 7 + 4 + 8 + 3 + 29 + 92 + 38 + 478 = 666.

77483299238478 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 77483299238397 and 77483299238406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 536861601 + ... + 537005907.

It is an arithmetic number, because the mean of its divisors is an integer number (2001771308160).

Almost surely, 2^{77483299238478} is an apocalyptic number.

77483299238478 is an abundant number, since it is smaller than the sum of its proper divisors (114686746344882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77483299238478 is a wasteful number, since it uses less digits than its factorization.

77483299238478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151102 (or 151099 counting only the distinct ones).

The product of its digits is 8193540096, while the sum is 81.

Subtracting 77483299238478 from its reverse (87483299238477), we obtain a palindrome (9999999999999).

The spelling of 77483299238478 in words is "seventy-seven trillion, four hundred eighty-three billion, two hundred ninety-nine million, two hundred thirty-eight thousand, four hundred seventy-eight".