73658991121 has 8 divisors (see below), whose sum is σ = 73941537024. Its totient is φ = 73376590560.

The previous prime is 73658991103. The next prime is 73658991139. The reversal of 73658991121 is 12119985637.

It is an interprime number because it is at equal distance from previous prime (73658991103) and next prime (73658991139).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73658991121 - 2⁹ = 73658990609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73658991181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1039980 + ... + 1108546.

It is an arithmetic number, because the mean of its divisors is an integer number (9242692128).

Almost surely, 2^73658991121 is an apocalyptic number.

It is an amenable number.

73658991121 is a deficient number, since it is larger than the sum of its proper divisors (282545903).

73658991121 is a wasteful number, since it uses less digits than its factorization.

73658991121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72671.

The product of its digits is 816480, while the sum is 52.

The spelling of 73658991121 in words is "seventy-three billion, six hundred fifty-eight million, nine hundred ninety-one thousand, one hundred twenty-one".