78476202428 has 24 divisors (see below), whose sum is σ = 151894690752. Its totient is φ = 35240871744.

The previous prime is 78476202407. The next prime is 78476202437. The reversal of 78476202428 is 82420267487.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20392100 + ... + 20395947.

It is an arithmetic number, because the mean of its divisors is an integer number (6328945448).

Almost surely, 2^78476202428 is an apocalyptic number.

It is an amenable number.

78476202428 is a deficient number, since it is larger than the sum of its proper divisors (73418488324).

78476202428 is a wasteful number, since it uses less digits than its factorization.

78476202428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40788101 (or 40788099 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 50.

The spelling of 78476202428 in words is "seventy-eight billion, four hundred seventy-six million, two hundred two thousand, four hundred twenty-eight".