4772271645 has 48 divisors (see below), whose sum is σ = 8408791872. Its totient is φ = 2503226880.

The previous prime is 4772271641. The next prime is 4772271649. The reversal of 4772271645 is 5461722774.

It is an interprime number because it is at equal distance from previous prime (4772271641) and next prime (4772271649).

It is not a de Polignac number, because 4772271645 - 2² = 4772271641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4772271645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4772271641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3505765 + ... + 3507125.

It is an arithmetic number, because the mean of its divisors is an integer number (175183164).

Almost surely, 2^4772271645 is an apocalyptic number.

4772271645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4772271645 is a deficient number, since it is larger than the sum of its proper divisors (3636520227).

4772271645 is a wasteful number, since it uses less digits than its factorization.

4772271645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2602 (or 2599 counting only the distinct ones).

The product of its digits is 658560, while the sum is 45.

The square root of 4772271645 is about 69081.6303006812. The cubic root of 4772271645 is about 1683.6108612990.

The spelling of 4772271645 in words is "four billion, seven hundred seventy-two million, two hundred seventy-one thousand, six hundred forty-five".