4051927845 has 72 divisors (see below), whose sum is σ = 8292252384. Its totient is φ = 1824596928.

The previous prime is 4051927843. The next prime is 4051927861. The reversal of 4051927845 is 5487291504.

It is not a de Polignac number, because 4051927845 - 2¹ = 4051927843 is a prime.

It is a super-2 number, since 2×4051927845² = 32836238522172688050, which contains 22 as substring.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4051927845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051927843) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 134022 + ... + 161448.

It is an arithmetic number, because the mean of its divisors is an integer number (115170172).

Almost surely, 2^4051927845 is an apocalyptic number.

4051927845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4051927845 is an abundant number, since it is smaller than the sum of its proper divisors (4240324539).

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

4051927845 is a wasteful number, since it uses less digits than its factorization.

4051927845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27519 (or 27509 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 4051927845 is about 63654.7550855394. The cubic root of 4051927845 is about 1594.2407322970.

The spelling of 4051927845 in words is "four billion, fifty-one million, nine hundred twenty-seven thousand, eight hundred forty-five".