4261421745 has 96 divisors (see below), whose sum is σ = 9215431680. Its totient is φ = 1845478080.

The previous prime is 4261421743. The next prime is 4261421767. The reversal of 4261421745 is 5471241624.

4261421745 is a `hidden beast` number, since 426 + 14 + 217 + 4 + 5 = 666.

It is not a de Polignac number, because 4261421745 - 2¹ = 4261421743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4261421743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 148410 + ... + 174780.

It is an arithmetic number, because the mean of its divisors is an integer number (95994080).

Almost surely, 2^4261421745 is an apocalyptic number.

4261421745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4261421745 is an abundant number, since it is smaller than the sum of its proper divisors (4954009935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4261421745 is a wasteful number, since it uses less digits than its factorization.

4261421745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26417 (or 26405 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 4261421745 is about 65279.5660601386. The cubic root of 4261421745 is about 1621.2556622869.

The spelling of 4261421745 in words is "four billion, two hundred sixty-one million, four hundred twenty-one thousand, seven hundred forty-five".