45765582781 has 6 divisors (see below), whose sum is σ = 47841904670. Its totient is φ = 43775774328.

The previous prime is 45765582773. The next prime is 45765582787. The reversal of 45765582781 is 18728556754.

It can be written as a sum of positive squares in only one way, i.e., 34425462681 + 11340120100 = 185541^2 + 106490^2 .

It is not a de Polignac number, because 45765582781 - 2³ = 45765582773 is a prime.

It is a super-2 number, since 2×45765582781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45765582787) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43256166 + ... + 43257223.

Almost surely, 2^45765582781 is an apocalyptic number.

It is an amenable number.

45765582781 is a deficient number, since it is larger than the sum of its proper divisors (2076321889).

45765582781 is an equidigital number, since it uses as much as digits as its factorization.

45765582781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86513435 (or 86513412 counting only the distinct ones).

The product of its digits is 18816000, while the sum is 58.

The spelling of 45765582781 in words is "forty-five billion, seven hundred sixty-five million, five hundred eighty-two thousand, seven hundred eighty-one".