73784138097 has 32 divisors (see below), whose sum is σ = 103574163456. Its totient is φ = 46656792000.

The previous prime is 73784138081. The next prime is 73784138107. The reversal of 73784138097 is 79083148737.

It is a happy number.

It is not a de Polignac number, because 73784138097 - 2⁴ = 73784138081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73784138017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5173258 + ... + 5187500.

It is an arithmetic number, because the mean of its divisors is an integer number (3236692608).

Almost surely, 2^73784138097 is an apocalyptic number.

It is an amenable number.

73784138097 is a deficient number, since it is larger than the sum of its proper divisors (29790025359).

73784138097 is a wasteful number, since it uses less digits than its factorization.

73784138097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15381.

The product of its (nonzero) digits is 7112448, while the sum is 57.

The spelling of 73784138097 in words is "seventy-three billion, seven hundred eighty-four million, one hundred thirty-eight thousand, ninety-seven".