73545766641 has 32 divisors (see below), whose sum is σ = 109375921920. Its totient is φ = 48842082432.

The previous prime is 73545766631. The next prime is 73545766669. The reversal of 73545766641 is 14666754537.

It is not a de Polignac number, because 73545766641 - 2⁷ = 73545766513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73545766631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21421461 + ... + 21424893.

It is an arithmetic number, because the mean of its divisors is an integer number (3417997560).

Almost surely, 2^73545766641 is an apocalyptic number.

It is an amenable number.

73545766641 is a deficient number, since it is larger than the sum of its proper divisors (35830155279).

73545766641 is a wasteful number, since it uses less digits than its factorization.

73545766641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262 (or 6256 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 54.

The spelling of 73545766641 in words is "seventy-three billion, five hundred forty-five million, seven hundred sixty-six thousand, six hundred forty-one".