45777771 has 32 divisors (see below), whose sum is σ = 74840640. Its totient is φ = 27475200.

The previous prime is 45777763. The next prime is 45777791. The reversal of 45777771 is 17777754.

45777771 is a `hidden beast` number, since 4 + 577 + 7 + 7 + 71 = 666.

It is not a de Polignac number, because 45777771 - 2³ = 45777763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45777701) 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, 12801 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (2338770).

Almost surely, 2^45777771 is an apocalyptic number.

45777771 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45777771 is a deficient number, since it is larger than the sum of its proper divisors (29062869).

45777771 is a wasteful number, since it uses less digits than its factorization.

45777771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3244 (or 3238 counting only the distinct ones).

The product of its digits is 336140, while the sum is 45.

The square root of 45777771 is about 6765.9272091857. The cubic root of 45777771 is about 357.7268574968.

It can be divided in two parts, 4 and 5777771, that added together give a palindrome (5777775).

The spelling of 45777771 in words is "forty-five million, seven hundred seventy-seven thousand, seven hundred seventy-one".