77272040245240 has 32 divisors (see below), whose sum is σ = 173863244112480. Its totient is φ = 30908611020672.

The previous prime is 77272040245219. The next prime is 77272040245277. The reversal of 77272040245240 is 4254204027277.

It is a happy number.

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, 231084 + ... + 12433723.

It is an arithmetic number, because the mean of its divisors is an integer number (5433226378515).

Almost surely, 2^{77272040245240} is an apocalyptic number.

It is an amenable number.

77272040245240 is an abundant number, since it is smaller than the sum of its proper divisors (96591203867240).

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

77272040245240 is a wasteful number, since it uses less digits than its factorization.

77272040245240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12817351 (or 12817347 counting only the distinct ones).

The product of its (nonzero) digits is 1756160, while the sum is 46.

The spelling of 77272040245240 in words is "seventy-seven trillion, two hundred seventy-two billion, forty million, two hundred forty-five thousand, two hundred forty".