45777919 has 4 divisors (see below), whose sum is σ = 49939560. Its totient is φ = 41616280.

The previous prime is 45777911. The next prime is 45777931. The reversal of 45777919 is 91977754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45777919 - 2³ = 45777911 is a prime.

It is a super-2 number, since 2×45777919² = 4191235735941122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45777911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2080804 + ... + 2080825.

It is an arithmetic number, because the mean of its divisors is an integer number (12484890).

Almost surely, 2^45777919 is an apocalyptic number.

45777919 is a deficient number, since it is larger than the sum of its proper divisors (4161641).

45777919 is a wasteful number, since it uses less digits than its factorization.

45777919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161640.

The product of its digits is 555660, while the sum is 49.

The square root of 45777919 is about 6765.9381463327. The cubic root of 45777919 is about 357.7272430079.

The spelling of 45777919 in words is "forty-five million, seven hundred seventy-seven thousand, nine hundred nineteen".