72205460009774 has 128 divisors (see below), whose sum is σ = 138321146880000. Its totient is φ = 28082617799040.

The previous prime is 72205460009773. The next prime is 72205460009791. The reversal of 72205460009774 is 47790006450227.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72205460009773) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1135292027 + ... + 1135355625.

It is an arithmetic number, because the mean of its divisors is an integer number (1080633960000).

Almost surely, 2^{72205460009774} is an apocalyptic number.

72205460009774 is a deficient number, since it is larger than the sum of its proper divisors (66115686870226).

72205460009774 is a wasteful number, since it uses less digits than its factorization.

72205460009774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65783 (or 65769 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 72205460009774 in words is "seventy-two trillion, two hundred five billion, four hundred sixty million, nine thousand, seven hundred seventy-four".