44747047477 has 4 divisors (see below), whose sum is σ = 48814960896. Its totient is φ = 40679134060.

The previous prime is 44747047417. The next prime is 44747047493. The reversal of 44747047477 is 77474074744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44747047477 - 2³¹ = 42599563829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44747047417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033956693 + ... + 2033956714.

It is an arithmetic number, because the mean of its divisors is an integer number (12203740224).

Almost surely, 2^44747047477 is an apocalyptic number.

It is an amenable number.

44747047477 is a deficient number, since it is larger than the sum of its proper divisors (4067913419).

44747047477 is a wasteful number, since it uses less digits than its factorization.

44747047477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067913418.

The product of its (nonzero) digits is 17210368, while the sum is 55.

Adding to 44747047477 its reverse (77474074744), we get a palindrome (122221122221).

The spelling of 44747047477 in words is "forty-four billion, seven hundred forty-seven million, forty-seven thousand, four hundred seventy-seven".