73091428977 has 16 divisors (see below), whose sum is σ = 111628846080. Its totient is φ = 41672244432.

The previous prime is 73091428973. The next prime is 73091428997. The reversal of 73091428977 is 77982419037.

It is not a de Polignac number, because 73091428977 - 2² = 73091428973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73091428973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3919077 + ... + 3937682.

It is an arithmetic number, because the mean of its divisors is an integer number (6976802880).

Almost surely, 2^73091428977 is an apocalyptic number.

It is an amenable number.

73091428977 is a deficient number, since it is larger than the sum of its proper divisors (38537417103).

73091428977 is a wasteful number, since it uses less digits than its factorization.

73091428977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857212.

The product of its (nonzero) digits is 5334336, while the sum is 57.

The spelling of 73091428977 in words is "seventy-three billion, ninety-one million, four hundred twenty-eight thousand, nine hundred seventy-seven".