45205557761 has 8 divisors (see below), whose sum is σ = 55637609664. Its totient is φ = 35767034640.

The previous prime is 45205557757. The next prime is 45205557767. The reversal of 45205557761 is 16775550254.

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 45205557761 - 2² = 45205557757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45205557767) 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, 248382095 + ... + 248382276.

It is an arithmetic number, because the mean of its divisors is an integer number (6954701208).

Almost surely, 2^45205557761 is an apocalyptic number.

It is an amenable number.

45205557761 is a deficient number, since it is larger than the sum of its proper divisors (10432051903).

45205557761 is a wasteful number, since it uses less digits than its factorization.

45205557761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496764391.

The product of its (nonzero) digits is 1470000, while the sum is 47.

The spelling of 45205557761 in words is "forty-five billion, two hundred five million, five hundred fifty-seven thousand, seven hundred sixty-one".